Kotlin is a popular and powerful open-source programming language. It is the official language of Android development, allowing developers to create sophisticated, innovative apps. Kotlin simplifies and speeds up development, allowing ambitious projects to be implemented faster, with fewer lines of code. This makes it an attractive option for clients looking to build a highly functional app or website quickly and efficiently.

Kotlin Developers bring valuable experience and expertise to any project they take on, allowing clients to get the most out of their investment. They are experienced in app architecture and development, making sure that client’s apps function exactly as desired. They also have excellent problem-solving skills, ensuring any issue is quickly resolved. In addition, their understanding of the Kotlin language makes working with this powerful tool more efficient and effective for clients.

Here's some projects that our expert Kotlin Developer made real:

  • Intuitive payment integration platforms
  • Secure authentication systems
  • Multi-platform app development
  • Streamlined in-app purchase functions
  • API issue resolution processes
  • Customized Login activities to connect with databases
  • Bug fixes for mobile apps on all platforms
  • Detailed user profiles optimized for functionality
  • Updated Android apps up to latest Google specs
  • End-to-end VPN app solutions for iOS, Android, Windows and Macs

At Freelancer.com we want our clients to know that their projects will be handled expertly by professionals with extensive experience in building with the Kotlin language. We can provide you with an experienced Kotlin Developer who can make your ambitious projects a reality in record time. Together you can bring your plans to life quickly and efficiently, allowing you to reap the rewards of our collaboration as soon as possible. If you're interested in taking advantage of our expertise in the field of Kotlin development then please do not hesitate to post your project today so that one of our professionals can help bring your plans to life!

Sur 52,425 commentaires, les clients ont évalué nos Kotlin Developers 4.9 sur 5 étoiles.
Embaucher des Kotlin Developers

Kotlin is a popular and powerful open-source programming language. It is the official language of Android development, allowing developers to create sophisticated, innovative apps. Kotlin simplifies and speeds up development, allowing ambitious projects to be implemented faster, with fewer lines of code. This makes it an attractive option for clients looking to build a highly functional app or website quickly and efficiently.

Kotlin Developers bring valuable experience and expertise to any project they take on, allowing clients to get the most out of their investment. They are experienced in app architecture and development, making sure that client’s apps function exactly as desired. They also have excellent problem-solving skills, ensuring any issue is quickly resolved. In addition, their understanding of the Kotlin language makes working with this powerful tool more efficient and effective for clients.

Here's some projects that our expert Kotlin Developer made real:

  • Intuitive payment integration platforms
  • Secure authentication systems
  • Multi-platform app development
  • Streamlined in-app purchase functions
  • API issue resolution processes
  • Customized Login activities to connect with databases
  • Bug fixes for mobile apps on all platforms
  • Detailed user profiles optimized for functionality
  • Updated Android apps up to latest Google specs
  • End-to-end VPN app solutions for iOS, Android, Windows and Macs

At Freelancer.com we want our clients to know that their projects will be handled expertly by professionals with extensive experience in building with the Kotlin language. We can provide you with an experienced Kotlin Developer who can make your ambitious projects a reality in record time. Together you can bring your plans to life quickly and efficiently, allowing you to reap the rewards of our collaboration as soon as possible. If you're interested in taking advantage of our expertise in the field of Kotlin development then please do not hesitate to post your project today so that one of our professionals can help bring your plans to life!

Sur 52,425 commentaires, les clients ont évalué nos Kotlin Developers 4.9 sur 5 étoiles.
Embaucher des Kotlin Developers

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    69 missions trouvées

    Je souhaite créer une application mobile destinée au marché burkinabé qui facilite la recherche et la réservation d’options haut de gamme : voitures de luxe à vendre ou à louer, ainsi que maisons disponibles en location ou en propriété. Fonctionnalités prioritaires : • Recherche de voitures de luxe : catalogue filtrable par marque, gamme de prix et disponibilité, avec photos haute résolution et fiches techniques détaillées. • Réservation de maison : calendrier intégré pour bloquer des dates, informations complètes sur le bien (emplacement, superficie, équipements) et galerie d’images. • Fiches détaillées pour chaq...

    €1251 Average bid
    €1251 Offre moyenne
    83 offres

    Je dispose déjà d’une plateforme SaaS en PHP / MySQL ; l’objectif est maintenant de lui adjoindre une application mobile native Android et iOS entièrement en français. L’app devra communiquer avec mon back-end via API (REST / JSON) afin de récupérer et mettre à jour les données existantes. Fonctionnalités clés • Notifications push configurables depuis le SaaS • Mode hors ligne avec synchronisation automatique dès qu’une connexion est retrouvée • Prise de photo directe depuis l’application puis annotation libre (dessin, surlignage) avant envoi L’expérience utilisateur doit rester fluide et réactive, c’est mon critère num&ea...

    €560 Average bid
    €560 Offre moyenne
    107 offres

    I need a lightweight chat-style messenger built specifically for Android so I can read incoming messages and send quick replies from the same screen. At this stage I only require the core one-to-one text conversation flow; once that is solid I may extend it to voice notes, file exchange, or group rooms, but those extras are not part of this first milestone. Here is what I expect: • A clean Android Studio project written in Kotlin (Java is fine if you strongly prefer). • Real-time send/receive with message status indicators. You are free to choose Firebase, WebSockets, or any other modern backend you are comfortable with—just keep the setup clear so I can run it locally. • Simple authentication (email/password or phone OTP) so users can log in and start chatting i...

    €45 / hr Average bid
    €45 / hr Offre moyenne
    14 offres

    Saya ingin membangun sebuah aplikasi media sosial khusus untuk platform Android (minimum Android 8.0, API 26). Kerangka alur sudah saya siapkan secara garis besar, namun masih berupa wireframe sederhana yang perlu diubah menjadi aplikasi fungsional. Fitur inti yang saya butuhkan: • Pendaftaran dan login menggunakan email atau akun Google • Feed bergulir berisi teks, foto, dan video pendek • Halaman profil dengan fungsi mengikuti dan berhenti mengikuti pengguna lain • Sistem like, komentar, serta notifikasi push waktu-nyata • Pencarian pengguna dan tagar Kebutuhan teknis: • Kode native Kotlin (lebih diutamakan) atau Java • Backend terintegrasi Firebase (Authentication, Realtime Database / Firestore, Cloud Storage) • Desain UI mengikuti...

    €8 Average bid
    €8 Offre moyenne
    1 offres

    Title: Senior Android Developer: Multimodal AI Pipeline (Real-time Video & Audio) **Project Description:** We are seeking a Senior Android Engineer to develop a modular, high-performance infrastructure for **real-time Multimodal capture (Video + Audio)**. The core of the project is a "Hybrid AI Routing Engine" that intelligently switches between on-device local processing and cloud analysis using Gemini 2.0. This application is an R&D prototype that must be **Play Store Ready**, with a heavy focus on background stability and thermal management. **Important:** The ultimate goal is to port this architecture to an Android-based smart glasses OS (AugmentOS), so the code must be hardware-agnostic. **Technical Specifications:** **1. Multimodal Pipeline (Camera + Audio):** ...

    €271 Average bid
    €271 Offre moyenne
    115 offres

    I want to bring a simple yet rock-solid productivity tool to life: a stand-alone Android app focused entirely on task management. The goal is to give users an uncluttered place to create, edit, prioritise, and complete tasks without needing any extra sign-ups or online services. Here is what I need delivered: • An APK ready for Play-Store submission, plus the full, well-commented source code (Android Studio in Kotlin or Java is fine). • A clean, responsive UI that works smoothly from Android 8.0 up to the latest version. • Core features: add, delete, reorder, and mark tasks as done; assign due dates or simple reminders; quick search or filter by status. • All data stored locally so the app functions fully offline. • Basic settings page (dark/light mode a...

    €140 Average bid
    €140 Offre moyenne
    36 offres

    I have an existing Android app that is stable but still very lean on features. The immediate goal is two-fold: first, roll out a new “upload” capability inside the app (users need to be able to select a file—primarily images or PDFs—from local storage and send it securely to our backend); second, compile, sign, and publish the updated build to the Google Play Console so the change is live for all users. The current stack is Kotlin with standard Android Jetpack libraries; the backend is ready and exposes a REST endpoint for the upload, so the mobile side only needs to handle file selection, progress indication, and a simple success/fail response. If you prefer Java that’s fine—as long as the final APK/AAB plays nicely with our existing codebase. Deliver...

    €81 Average bid
    €81 Offre moyenne
    29 offres
    Clean Matrimonial Android App
    6 jours left
    Vérifié

    I run a small matrimonial service with roughly 1,000 active profiles and I’m ready to move the entire experience to a dedicated Android app. The overall aesthetic must stay simple and clean—no flashy graphics, just an intuitive layout that keeps the focus on the profiles. Core flow • New users register through phone-number verification only (OTP). I do not want email, social or any other sign-up method. • After login, users can browse or search the profile database. Search should let them refine results by Education, Age, Income, Region and Caste. These filters need to be fast and can be combined in any order. • Each profile will show photo gallery, personal details and a “request contact” button that triggers an in-app notification or SMS aler...

    €307 Average bid
    €307 Offre moyenne
    123 offres

    Procuro comprar, à vista, o código-fonte completo de um aplicativo IPTV em Kotlin semelhante ao IBO Player (versão 3.4 ou superior) acompanhado de um painel administrativo em PHP. Meu foco principal é o painel: ele precisa permitir o cadastro e gerenciamento de MACs e o controle de assinaturas mensais. Já possuo um painel funcional e o APK final, porém não tenho acesso ao código Kotlin; estou até desenvolvendo um projeto próprio, mas acelerar o processo comprando uma base pronta seria muito mais interessante. O que preciso receber: • Código-fonte do app em Kotlin, pronto para compilar no Android Studio. • Painel PHP com gerenciamento de MACs e assinaturas plenamente operante. • Instru&cc...

    €167 Average bid
    €167 Offre moyenne
    18 offres

    PROBLEM: - Uploading app to Amazon Appstore - Getting error: "AAB2 bundle currently supports no devices" - AAB1 works fine (supports 12 Fire Tablets + 2 Fire TV) - AAB2 bundle is being rejected WHAT I NEED: - Fix to generate single universal AAB with ARM support only - Ensure app supports all Fire Tablets and Fire TV devices - Remove x86/x86_64 architectures that Fire devices don't need - Test build to confirm it works TECHNICAL DETAILS: - Flutter app with Kotlin DSL () - Need to configure NDK abiFilters correctly - Currently using default Flutter build settings - App already has proper signing and ProGuard configured

    €13 Average bid
    €13 Offre moyenne
    17 offres

    Saya membutuhkan seorang developer yang mampu merancang dan membangun sebuah aplikasi permainan untuk platform Android. Fokusnya adalah pengembangan aplikasi, bukan web atau desain grafis, sehingga keahlian utama Anda harus mencakup pembuatan game mobile. Gambaran singkat: • Jenis aplikasi: permainan kasual—game‐play cukup sederhana agar ringan dijalankan di berbagai perangkat Android. • Target platform: Android (versi 8.0 Oreo ke atas diutamakan). • Teknologi: saya terbuka pada Unity, Godot, atau native Kotlin/Java—silakan pilih yang paling efisien untuk performa dan pemeliharaan. Fitur inti yang saya butuhkan: 1. Mekanisme permainan dasar (skor, level, dan tantangan ringan). 2. Antarmuka pengguna intuitif dengan kontrol sentuh. 3. Audio sederhana (musik latar...

    €18 / hr Average bid
    €18 / hr Offre moyenne
    5 offres

    I want to turn ordinary paper into a fully connected writing surface by building a smart pen that streams everything I write or sketch straight to a companion app. The pen must: • capture handwriting and immediately convert it to editable text, • digitize free-hand drawings with stroke-level accuracy, and • recognise simple air gestures for quick commands such as undo or page-switch. All data should travel over Bluetooth Low Energy so the pen feels cable-free and responsive. On the mobile side I need a single code-base or two native apps that run smoothly on both iOS and Android, displaying the incoming strokes in real time while offering export to PDF, SVG or plain text. Core deliverables 1. Hardware prototype with firmware handling sensing, on-board buffering a...

    €267 Average bid
    €267 Offre moyenne
    19 offres

    I already run a real-money, multiplayer Ludo game in production on a React (TSX) front-end with a Node.js backend. Now I want the very same experience packaged as an Android app. You will start from the existing codebase and reuse as much business logic as possible, then reshape it for a smooth mobile flow. The Android build must preserve every live feature—gameplay, wallet handling, real-time matchmaking, authentication, in-game chat, and anything else users already enjoy on the web—while also feeling truly native (push notifications, back-button behaviour, Play-Store-ready signing, etc.). I am happy to consider React Native, Kotlin, Flutter or another approach if it lets us: • call my current REST/WebSocket endpoints with minimal refactor • keep animations and ...

    €278 Average bid
    €278 Offre moyenne
    15 offres

    1. Core Framework: Platform: 100% Native Android (Kotlin or Java). Strictly NO WebView or Hybrid frameworks. Database: Real-time synchronization with a secure web-based Admin Panel. 2. Task & AdMob Integration (Full Security): Flow: User clicks Task -> Trigger AdMob Interstitial/Rewarded Ad -> Redirect to YouTube/TikTok/FB -> Task Verified. Server-Side Callbacks: Use server-side validation for AdMob rewards to prevent ad-skipping hacks. Frequency Capping: Strict limit of 4 ads per device/day to protect AdMob account health. 3. 6-Level Referral & Salary Logic: Architecture: Automated server-side tracking for a 6-level referral hierarchy. Milestones: Auto-trigger "Monthly Salary" status once user reach invite targets (e.g., 200, 500, 1000 invites). Dashboard: Real-...

    €99 Average bid
    €99 Offre moyenne
    44 offres

    Android App UI Replica (Jetpack Compose) General Information I have an existing Android application only as an APK file. There is no Android Studio source code — only a decoded version via apktool (res, drawable, xml, png, smali). The app is written using Jetpack Compose, so this task is NOT reverse engineering. The goal is to recreate the UI visually 1:1. I will provide: - APK file - decoded resources - screenshots of all screens The final result must be a clean new Android Studio project. Application Concept Type: Personal account / dashboard application 1. Splash Screen - Shows a welcome image - Duration: ~2-3 second - Automatically navigates to PIN screen 2. PIN Code Screen - 4 circles at the top - Numeric keypad (0–9) - Tap animation similar to original - Hardcode...

    €217 Average bid
    €217 Offre moyenne
    74 offres

    I want to commission a full-featured Android application dedicated to organising eSport scrimmages and small-scale tournaments. My budget for the entire build is approximately US $1,000, which I will release in clearly defined milestones (prototype, beta, final release, and demo video). Core scope The app has to let players create and manage teams, schedule matches effortlessly, and keep ongoing statistics so organisers can review past performances. Because most users will expect a quick sign-up flow, social-media login options (Google, Facebook, Twitter) need to be baked in from the start. I also need a lightweight in-app payment gateway so teams can pay entry fees or unlock premium brackets without leaving the platform. Deliverables • Production-ready Android APK and source co...

    €3610 Average bid
    €3610 Offre moyenne
    49 offres

    Saya sedang menyiapkan sebuah aplikasi sosial media khusus Android dan ingin bekerja sama dengan satu pengembang yang bisa mengeksekusi proyek ini dari awal hingga siap diluncurkan. Tujuan Aplikasi ini akan menjadi ruang interaksi pengguna—mirip layaknya platform sosial pada umumnya—di mana mereka dapat membuat profil, berbagi postingan, berkomentar, serta menerima notifikasi aktivitas terbaru. Ruang lingkup utama • Desain antarmuka (UI/UX) sederhana, intuitif, dan responsif untuk perangkat Android terkini. • Fitur inti: pembuatan akun, login/registrasi aman, feed posting, sistem like & komentar, serta push notification. • Integrasi backend (bisa Firebase atau solusi sejenis) untuk autentikasi dan penyimpanan data real-time. • Dashboard admin rin...

    €5 / hr Average bid
    €5 / hr Offre moyenne
    5 offres

    Saya membutuhkan sebuah aplikasi Android sederhana yang memungkinkan pengguna menonton drama Korea melalui streaming video. Fokus utama saya adalah: • Pemutar video streaming yang stabil dan mendukung kualitas adaptif. • Antarmuka bersih—daftar judul, halaman detail, dan tombol putar. • Backend ringan atau integrasi API agar saya bisa menambah/ubah tautan video sendiri. Silakan gunakan bahasa pemrograman, framework, atau player library Android yang Anda rasa paling efisien (misalnya Kotlin + ExoPlayer), asalkan performa streaming lancar dan kode mudah dipelihara. Kirimkan: 1. APK uji coba. 2. Kode sumber lengkap dengan petunjuk build. 3. Panduan singkat cara saya memperbarui katalog drama. Fitur lain seperti unduhan episode atau pemberitahuan bisa d...

    €418 Average bid
    €418 Offre moyenne
    16 offres

    I want to turn my idea into an Android-based game that genuinely entertains players and, at the same time, brings in consistent income. The goal is a polished, lightweight game that runs smoothly on most devices and is fully set up for revenue through AdMob, rewarded video, or other proven in-app purchase models. You’ll take the lead on coding, design integration, and the entire Play Store release process. I’m open to the engine or framework you’re most comfortable with—Android Studio with Kotlin/Java or a cross-platform tool like Unity, as long as the final build is stable and easy to maintain. Deliverables: • Play-ready APK/AAB and all project source files • Monetization features integrated, tested, and demonstrably working • Brief documentat...

    €475 Average bid
    €475 Offre moyenne
    27 offres

    Project Title: High-End Full-Scale Clone of AirDroid Parental Control (iOS & Android) ​Project Description: PRO-DEVELOPER: I am commissioning a premium, cross-platform clone of AirDroid Parental Control. The goal is to achieve 1:1 functionality with high stability and military-grade security. ​Core Real-Time Features (High Priority): ​Remote Monitoring: Silky-smooth, low-latency streaming via WebRTC (Real-time front/back camera access and Live Screen Sharing). ​Ambient Audio: One-way high-quality audio pickup from the child's surroundings. ​Remote Control & Management: Remote screen casting with the ability to manage device settings. ​Essential Management Features (The "Full Clone" Details): ​App Blocker & Schedules: Ability to block specific apps (Social media, ...

    €12029 Average bid
    €12029 Offre moyenne
    101 offres

    We need an Android developer to add iPhone-style panorama to the Open Camera app (open source: ). Goal: Implement panorama in Open Camera so it works like iPhone: guided on-screen motion, smooth horizontal panning, and one stitched panorama image. • Works seamlessly on both the front and back cameras. • Guides the user with the same arrow-line UI Apple uses, keeping motion smooth and level. • Captures a continuous series of frames, stitches them on-device, and outputs one high-quality image without pushing memory limits. You’ll work only against the official Open Camera codebase (or a clean fork you create). I’ll take your branch and merge it into our own app later.

    €129 Average bid
    €129 Offre moyenne
    21 offres

    We are looking for a full-time Android developer to work remotely on an active commercial application that includes live streaming, video content, stores, payment systems, and delivery company integrations via API. Working Hours & Commitment: • 10 hours daily (remote). • Continuous screen sharing during working hours. • Pre-agreed break times are allowed. • Any interruption outside agreed breaks will be considered a breach. Main Responsibilities: • Fix existing bugs. • Develop and add new features. • Improve the menu system. • Enhance the live streaming system. • Improve code quality and structure. • Strengthen security and stability. • Optimize performance. • Adjust UI colors and layouts. • Align Android e...

    €13 / hr Average bid
    €13 / hr Offre moyenne
    79 offres

    I want to replicate the smooth, quick-credit experience that apps such as KreditBee and Money View deliver, but with my own branding and flow. The build is strictly for Android and must be submitted to – and accepted by – Google Play, so every screen, permission request, and data-handling practice has to comply with the latest Play Store lending and personal-loan policies. Core flow • Registration → basic details • KYC verification – Aadhaar/PAN capture, selfie match, secure API hand-off to a third-party service of your choice • Loan application and approval dashboard • Before loan disbursement, the app must harvest and store the user’s full contact list (names, phone numbers, email where available) after an explicit consent prompt ...

    €921 Average bid
    €921 Offre moyenne
    28 offres

    Saya ingin membangun sebuah aplikasi Android berfokus pada manajemen tugas. Intinya, pengguna harus dapat: • Menambah, mengedit, dan menghapus tugas • Mengelompokkan tugas berdasarkan kategori atau prioritas • Menerima pengingat (push notification) untuk tenggat waktu • Melihat statistik penyelesaian tugas dalam tampilan ringkas Desain antarmuka cukup sederhana dan intuitif; Material Design sudah memadai. Backend boleh lokal (SQLite/Room) atau memakai solusi ringan berbasis cloud—silakan rekomendasikan pendekatan terbaik. Harap sertakan: • Rencana arsitektur singkat (struktur folder, pattern seperti MVVM jika digunakan) • Daftar dependensi utama (Jetpack, Retrofit, dsb.) • Estimasi waktu pengerjaan per fase (UI, logika inti, testing) ...

    €4 / hr Average bid
    €4 / hr Offre moyenne
    5 offres

    The goal is to build a lightweight Android utility focused on task management. Core capability centres on notifications and reminders—covering everyday to-dos as well as specialised payment nudges and simple order-processing follow-ups—delivered reliably on Android 8.0+ devices. Scope of work • Create the full Android application in Kotlin (Java is acceptable if strongly preferred) with Android Studio. • Design clean Material-compliant screens for adding, editing and browsing tasks. • Persist data locally with Room; structure the code so a future cloud sync (e.g. Firebase) can slot in without major refactoring. • Implement a reminder engine that schedules push notifications, survives device reboots and handles recurring events such as monthly paymen...

    €86 Average bid
    €86 Offre moyenne
    17 offres

    Saya ingin mewujudkan sebuah aplikasi hiburan khusus Android. Aplikasi ini harus: • Menyajikan konten hiburan yang ringan dan menarik (video pendek, audio, kuis, atau format serupa—saya terbuka didiskusikan). • Memiliki antarmuka sederhana, responsif, dan mudah dipahami pengguna. • Berjalan lancar di beragam ukuran layar Android terbaru. • Siap diintegrasikan dengan sistem iklan (AdMob atau solusi setara) untuk monetisasi dasar. • Disertai file APK, kode sumber lengkap, serta petunjuk build sehingga saya dapat melakukan update sendiri di kemudian hari. Saya akan memberikan panduan konten, struktur dasar halaman, serta aset grafis yang diperlukan. Mohon sertakan portofolio proyek Android serupa, perkiraan durasi pengerjaan, dan teknologi atau framewo...

    €9 / hr Average bid
    €9 / hr Offre moyenne
    8 offres

    I’m ready to have a brand-new feature built from scratch for my mobile application, and the entire codebase needs to be written in pure Java. Performance, clean architecture, and clear inline documentation are non-negotiable because this module will slot straight into an existing codebase that already follows solid, maintainable practices. Here’s what I need from you: • A concise outline of your technical approach—how you’ll structure the code, the patterns or libraries you prefer, and the way you’ll keep the footprint lightweight on a mobile device. • A short overview of your relevant Java mobile experience, especially any instances where you created a feature end-to-end rather than extending existing code. • Your best estimate of the cale...

    €93 Average bid
    €93 Offre moyenne
    18 offres

    I need a complete Android and iOS matrimony application tailored for the Indian market. The build must centre on four core modules: • Rich user profiles and advanced search – each member should enter detailed personal information and upload both photos and videos so they can be found through intuitive filters. • Real-time communication – text messaging must work instantly, and in-app voice calls should connect members securely without sharing phone numbers. • Matchmaking and recommendations – an algorithm that suggests compatible profiles based on user-supplied criteria. • Free horoscope matchmaking – a built-in tool that automatically compares two users’ horoscopes, displaying clear compatibility results at no extra cost. I expect...

    €355 Average bid
    €355 Offre moyenne
    20 offres

    I’m ready to turn my SaaS concept into a lean, test-ready MVP focused exclusively on mobile. The build should cover the absolute essentials only—enough for early adopters to sign in, experience the core service and give actionable feedback. Scope • Mobile-first: iOS and Android released through TestFlight / Google Play internal testing or a comparable beta channel. • Cloud-hosted backend and database set up for easy scaling and analytics plug-ins later on. • Clean, modular codebase so I can iteratively add dashboards, user management or other features after validation. Acceptance criteria 1. A fully functional mobile app compiled and installable on both platforms. 2. Basic navigation, secure sign-in and the core workflow of the SaaS idea working e...

    €147 Average bid
    €147 Offre moyenne
    39 offres

    A responsive frontend web application built for a photography business to showcase services, portfolios, and client information. The platform focuses on clean UI design, smooth navigation, and optimized performance. It is deployed on cloud infrastructure and structured for scalability and future backend integration. Link:

    €41 Average bid
    €41 Offre moyenne
    11 offres

    I want a cross-platform mobile app that serves fresh, uplifting affirmations every day on both iPhone and Android. The content will span three key themes—positive, health, and motivational messages—so users can decide which tone suits them each morning. Core features need to feel effortless: a gentle daily notification, a simple way for people to track what they’ve read or favorited, and a settings area where they can truly make the experience their own. Customization is central to the concept. Users must be able to pick from our preset categories, type in personal affirmations, and switch backgrounds or color themes to match their mood. Because the idea hinges on habit-building, efficient local storage and a lightweight cloud backup for favorites or streak data will be...

    €546 Average bid
    €546 Offre moyenne
    199 offres

    I’m building a dedicated Android application for my eyewear chain and I need a developer who can take it from concept to a polished, Play-Store–ready release. The app must recognise that we operate several branches. Each location needs its own working hours, contact details, Google Maps pin, and real-time stock availability. When a customer opens the app, they can immediately see which branch is open, what products are in stock there, and book their appointment accordingly. Our product catalog is the heart of the experience. Frames, lenses, sunglasses and contact lenses should be displayed with photos, prices and “available in store” status. Shoppers must be able to filter by type, price range and availability, not just keyword search. Speed here is critical&mdash...

    €1044 Average bid
    €1044 Offre moyenne
    50 offres

    I want to bring a dedicated Android e-commerce application from concept to Google Play. The core of the build is straightforward: customers must be able to browse products, add items to a cart, and check out smoothly—but the standout requirement is a robust push-notification system that keeps shoppers updated on promotions, order status, and cart reminders in real time. My priority stack is Kotlin with Android Studio, though I am open to proven cross-compatible libraries where it makes sense. Payment processing, user profiles, and basic analytics are already budgeted for the next phase, so please set up the project architecture with future modules in mind. Deliverables: • Production-ready APK plus signed AAB for store release • Complete, well-commented source code in a ...

    €182 Average bid
    €182 Offre moyenne
    35 offres

    I’m ready to launch an e-commerce experience on Android and need a complete application built from the ground up. The core idea is simple: shoppers must be able to browse a catalog, add items to a cart, pay securely, and track their orders—all within a clean, responsive interface that feels fully native to Android. You’ll focus on coding and UX while I supply the product data, brand colors, and any graphics you need. Material Design principles are a must so the layout adapts gracefully across phones and tablets. Please integrate a widely-used Indonesian-friendly payment gateway such as Midtrans (or propose an alternative) and set up push notifications for order status updates. Deliverables • Production-ready APK plus full source (Kotlin or Java, latest Android SD...

    €30 / hr Average bid
    €30 / hr Offre moyenne
    71 offres

    I’m ready to launch an e-commerce experience on Android and need a complete application built from the ground up. The core idea is simple: shoppers must be able to browse a catalog, add items to a cart, pay securely, and track their orders—all within a clean, responsive interface that feels fully native to Android. You’ll focus on coding and UX while I supply the product data, brand colors, and any graphics you need. Material Design principles are a must so the layout adapts gracefully across phones and tablets. Please integrate a widely-used Indonesian-friendly payment gateway such as Midtrans (or propose an alternative) and set up push notifications for order status updates. Deliverables • Production-ready APK plus full source (Kotlin or Java, latest Android SD...

    €29 / hr Average bid
    €29 / hr Offre moyenne
    63 offres

    I’m ready to launch an e-commerce experience on Android and need a complete application built from the ground up. The core idea is simple: shoppers must be able to browse a catalog, add items to a cart, pay securely, and track their orders—all within a clean, responsive interface that feels fully native to Android. You’ll focus on coding and UX while I supply the product data, brand colors, and any graphics you need. Material Design principles are a must so the layout adapts gracefully across phones and tablets. Please integrate a widely-used Indonesian-friendly payment gateway such as Midtrans (or propose an alternative) and set up push notifications for order status updates. Deliverables • Production-ready APK plus full source (Kotlin or Java, latest Android SD...

    €30 / hr Average bid
    €30 / hr Offre moyenne
    70 offres

    Saya ingin membangun sebuah aplikasi produktivitas khusus untuk perangkat Android. Fokus utama proyek ini adalah pengembangan aplikasi end-to-end, mulai dari rancangan antarmuka hingga fungsi inti yang membantu pengguna bekerja lebih efisien. Ruang lingkup pekerjaan: • Membuat wireframe sederhana berdasarkan kebutuhan dasar yang akan saya bagikan. • Mengembangkan aplikasi Android native (Java atau Kotlin) dengan struktur kode yang rapi dan mudah dipelihara. • Mengintegrasikan fitur produktivitas utama—misalnya pencatat tugas, pengingat, atau pelacak waktu—(saya terbuka pada masukan Anda untuk menentukan fitur mana yang paling relevan). • Menyediakan dokumentasi singkat tentang cara mengonfigurasi, membangun, dan menjalankan proyek. • Menyerah...

    €3 / hr Average bid
    €3 / hr Offre moyenne
    4 offres

    Saya ingin membangun sebuah aplikasi produktivitas khusus untuk perangkat Android. Fokus utama proyek ini adalah pengembangan aplikasi end-to-end, mulai dari rancangan antarmuka hingga fungsi inti yang membantu pengguna bekerja lebih efisien. Ruang lingkup pekerjaan: • Membuat wireframe sederhana berdasarkan kebutuhan dasar yang akan saya bagikan. • Mengembangkan aplikasi Android native (Java atau Kotlin) dengan struktur kode yang rapi dan mudah dipelihara. • Mengintegrasikan fitur produktivitas utama—misalnya pencatat tugas, pengingat, atau pelacak waktu—(saya terbuka pada masukan Anda untuk menentukan fitur mana yang paling relevan). • Menyediakan dokumentasi singkat tentang cara mengonfigurasi, membangun, dan menjalankan proyek. • Menyerah...

    €3 / hr Average bid
    €3 / hr Offre moyenne
    5 offres

    I need a lightweight Android application with three to five screens that primarily display information to the user. A simple login/signup form will gate access, after which the remaining screens should present static or lightly-dynamic content without any heavy backend logic. The look and feel must stay minimalistic and clean—think standard typography, ample white space, and subtle Material touches only where they help usability. Core scope • Splash → Login/Signup → 2–4 info screens navigated by toolbar or bottom-nav. • Smooth performance on the latest Android release (targetSdkVersion 34). • Written in Kotlin (Jetpack Compose or XML—your call) with clear, well-commented source code supplied at hand-off. • Read-me explaining build ...

    €491 Average bid
    €491 Offre moyenne
    66 offres
    Logo kebahagiaan
    2 jours left

    Saya berencana meluncurkan sebuah aplikasi produktivitas khusus Android yang fokus pada fitur pengingat dan notifikasi. Tujuannya sederhana: membantu pengguna menjadwalkan serta mengingat tugas-tugas penting tanpa kerepotan. Lingkup pekerjaan: • Merancang dan mengembangkan aplikasi Android native (Java atau Kotlin). • Membuat modul pengingat yang memungkinkan pengguna menetapkan jadwal harian, mingguan, atau kustom. • Mengimplementasikan notifikasi lokal yang dapat diulang, ditunda (snooze), dan dihapus dengan mudah. • Antarmuka bersih dan intuitif agar pengguna baru langsung paham alur penambahan maupun pengelolaan tugas. • Dokumentasi singkat tentang cara build, struktur kode, dan petunjuk rilis di Google Play. Kriteria keberhasilan: – Apl...

    €32 Average bid
    €32 Offre moyenne
    5 offres

    Saya berencana meluncurkan sebuah aplikasi produktivitas khusus Android yang fokus pada fitur pengingat dan notifikasi. Tujuannya sederhana: membantu pengguna menjadwalkan serta mengingat tugas-tugas penting tanpa kerepotan. Lingkup pekerjaan: • Merancang dan mengembangkan aplikasi Android native (Java atau Kotlin). • Membuat modul pengingat yang memungkinkan pengguna menetapkan jadwal harian, mingguan, atau kustom. • Mengimplementasikan notifikasi lokal yang dapat diulang, ditunda (snooze), dan dihapus dengan mudah. • Antarmuka bersih dan intuitif agar pengguna baru langsung paham alur penambahan maupun pengelolaan tugas. • Dokumentasi singkat tentang cara build, struktur kode, dan petunjuk rilis di Google Play. Kriteria keberhasilan: – Apl...

    €447 Average bid
    €447 Offre moyenne
    7 offres

    Saya ingin sebuah aplikasi media sosial khusus Android yang dibangun dari nol hingga siap rilis di Google Play. Fokusnya adalah pengalaman pengguna yang lancar, antarmuka modern, dan arsitektur backend yang mudah diskalakan. Fungsi inti yang saya butuhkan: • Pendaftaran & login (email, Google, atau Facebook) • Beranda/feeds real-time tempat pengguna dapat mem‐post teks, foto, atau video pendek • Fitur suka, komentar, dan follow/unfollow akun lain • Laman profil dengan foto, bio, dan daftar posting • Pencarian akun & tagar • Notifikasi push untuk interaksi penting • Panel admin web sederhana untuk moderasi konten dan pengguna Teknologi yang disarankan—namun terbuka jika Anda punya opsi lebih baik—antara lain Kotlin + Andro...

    €355 Average bid
    €355 Offre moyenne
    5 offres

    I’m building a fully native mobile application that lets drivers book automotive services The core flow is simple: users create an account (email, phone, or social login),check real-time availability, reserve a time, then pay securely without ever leaving the app. Both iOS and Android need to feel identical in look and speed, so I’m expecting Swift/SwiftUI on the Apple side and Kotlin with Jetpack on Android, backed by a single REST or GraphQL API. South African gateway must handle payments, supporting saved cards and one-touch checkout via Credit Card (VISA) or selected electronic transfers as well as PayPal etc. Please show me past work that demonstrates: • native builds (no hybrid wrappers) • secure login implementation • a live payment gateway...

    €6 / hr Average bid
    €6 / hr Offre moyenne
    64 offres

    I need a secure, lightweight VPN application built for both and Android. The interface can stay minimal; stability, speed, and protocol flexibility are the real priorities. Core capabilities I expect: • Kill switch that reliably blocks traffic if the tunnel drops • Split tunneling so the user can choose which apps bypass the VPN • Support for the following protocols or transport layers: ssh, ssl, udp, v2ray, and websocket • A menu of multiple server locations that I can expand later through simple JSON or similar remote config No in-app user-authentication flow is required; the build should assume pre-provisioned profiles or embedded credentials. Deliverables: 1. Clean, well-commented source code (/Kotlin or Java/) 2. Signed release builds ready for TestFli...

    €212 Average bid
    €212 Offre moyenne
    48 offres

    I am building a utility-style Android application and need an experienced Kotlin developer to take it from concept to a stable, Play-ready release. The core of the job involves: • Designing clean, maintainable Kotlin code that follows Android best practices (MVVM, Jetpack components, coroutines). • Implementing a small feature set typical of tools apps—think background services, permission handling, and a concise, responsive UI built with XML or Jetpack Compose. • Integrating basic analytics and in-app settings so the user can customise the experience. • Connecting the app to a lightweight local data store (Room or DataStore) for persistence. • Packaging, signing, and preparing a release build that passes Google Play requirements. I will provide...

    €126 Average bid
    €126 Offre moyenne
    21 offres

    I am building a mobile-first social networking app with one clear goal: dramatically improve user engagement across my social media ecosystem. The app will serve as the hub where followers connect, share content, and keep returning, amplifying everything I post on Instagram, TikTok, and future channels. Core functions need to feel instantly familiar—think intuitive onboarding, a dynamic content feed, frictionless chat, real-time notifications, and lightweight rewards or gamification that keep people scrolling and sharing. Seamless social log-in, push-notification opt-ins, and in-app analytics are essential so I can track retention and tweak campaigns in near-real time. Because engagement is the metric that matters, every screen should encourage interaction. I’m open on the te...

    €483 Average bid
    €483 Offre moyenne
    76 offres

    When my Android app is minimized, any YouTube video inside the WebView pauses immediately. I need a clean, reliable way to keep playback running in the background the same way the regular Here’s the current state of things: • I’m loading the video inside an Android WebView. • I have already experimented with various WebView settings—JavaScript, media playback flags, setMediaPlaybackRequiresUserGesture =false, etc.—but nothing has stopped the pause on “home” or “recent-apps” actions. • No alternative implementations (custom players, exo-player wrappers, or different WebView engines) are in place, What I need from you: 1. A working code solution (Java or Kotlin) that lets the video continue playing when the user switch...

    €68 Average bid
    €68 Offre moyenne
    17 offres

    I’m building an Android-only application and need a clean, secure login flow that relies on one-time passwords sent strictly by SMS. Users will enter their phone number, receive the code, and gain access after successful verification—no usernames or emails involved. You’ll be responsible for wiring up the full authentication cycle, choosing a reliable SMS gateway, and writing the Android code (Kotlin or Java—your call) that: • accepts the phone number, • triggers the SMS OTP dispatch, • validates the returned code with sensible expiry and limited retries, • handles resend logic, and • stores / refreshes session tokens once the user is verified. Deliverables must include the documented source code, any backend or cloud function n...

    €71 Average bid
    €71 Offre moyenne
    45 offres

    I’m ready to turn a solid concept into a polished Android application focused squarely on business and productivity for my customers. The end goal is a Play-Store–ready build that lets users handle three core jobs in one place: • Task management – create, assign, track, and get notified in real time • Invoicing & payments – generate invoices, accept card / wallet payments securely, and surface simple analytics • Lightweight CRM – store customer profiles, log interactions, and view a history that ties back to tasks and invoices A clean, modern UI is key because my audience is external customers, not internal staff. They need to open the app and immediately understand what to do next without training. Here’s how I picture the fl...

    €95 Average bid
    €95 Offre moyenne
    28 offres

    We are seeking experienced iOS and Android developers to assist in completing and optimizing our iOS VPN application. The developer will need to synchronize all features and logic from the reference template (Android version) to the iOS version, address existing issues in the iOS app, and update and optimize backend code to ensure compatibility and performance with the iOS client. Pre-Development Requirements (Must Complete): To ensure development quality and feature consistency, all developers must complete the following steps before starting coding: Download and thoroughly experience the reference template: This is a crucial step to understand project requirements. Please download the reference template from Google Play and fully experience all features, including connection flow, sett...

    €304 Average bid
    €304 Offre moyenne
    16 offres

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