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I’m ready to commission a full-featured, cross-platform messenger that feels as smooth and reliable as WhatsApp. The project covers three client apps—native iOS, native Android and a responsive web version—backed by a single, real-time messaging backend. Core communication features must include • text messaging with read receipts and typing indicators • high-quality voice calls • low-latency video calls On top of that, the app needs group chats, file sharing for images, documents and short videos, plus end-to-end encryption for every message and call. I expect a polished UX, push notifications on mobile, and a clean, well-documented API so additional services can hook into the platform later. Technologies such as WebRTC, [login to view URL] (or a comparable real-time layer), and reliable encryption libraries should be part of your proposed stack; feel free to suggest Flutter, React Native or fully native builds if that shortens development without sacrificing performance. Deliverables 1. iOS, Android and web clients packaged and ready for App Store / Play Store / production deployment 2. Scalable backend with user authentication, contact sync and media storage 3. Admin dashboard for basic user and group management 4. Source code, build scripts and concise setup documentation 5. A short hand-off session walking me through deployment, keys and ongoing maintenance Acceptance criteria: all listed features function smoothly across the three platforms, calls connect in under two seconds on a standard 4G network, and encryption passes an independent test vector I’ll provide. If this scope matches your expertise, outline your preferred tech stack, timeline and previous work on similar real-time apps.
Project ID: 40481201
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35 freelancers are bidding on average ₹371,607 INR for this job

Hi there, I have worked on audio, video, chat-based social platforms, real-time communication systems, and community applications and have delivered them across web and mobile platforms with messaging, calling, notifications, and media-sharing capabilities. In this kind of application, real-time performance, call stability, scalability, and security are crucial. Therefore, I will start with the backend and communication architecture, defining the real-time layer, media handling, authentication flow, encryption strategy, and WebRTC integration before moving into the client applications. Then I will build the messaging, voice/video calling, group communication, file sharing, push notifications, contact sync, admin dashboard, and cross-platform user experience while ensuring everything works seamlessly across iOS, Android, and Web. I would also like to understand more about expected user volume, hosting preferences, contact sync requirements, and future roadmap so the platform can be architected correctly from the beginning. I would request to connect for a detailed discussion regarding the complete scope and deployment expectations. Thanks, Rahul A.
₹265,000 INR in 45 days
7.7
7.7

Hi I have read your requirements and I am sure I will be able to help you. Please message me so that we will have detail technical discussion. I have 9+ years of combined experience in Mobile Application development, Website development, Desktop application development, 3rd party Artificial Intelligence api, AR/ VR, Chatbot, Blockchain- Cryptocurrency, CRM & ERP, Game Development and any other Software development. I am having expertise in Native on Android Java, kotlin and IOS Swift, and For Hybrid Cross platform on Flutter Dart & React- Native and for web and backend on react js and node js, Python Django and php CodeIgniter mvc and Laravel. Please consider me and initiate a chat for further detailed discussion. Regards, Anju Logical Soft Tech Pvt Ltd, Indore(M.P)
₹250,000 INR in 45 days
6.6
6.6

Hi, I came across your project "WhatsApp-Style Messenger App" and I'm confident I can help you with it. About Me: I'm a full stack developer and agency owner with over 8+ years of experience in Mobile App Development, React Native, Android, Android App Development, iOS Development, WebRTC. , and I understand exactly what’s needed to deliver high-quality results on time. Why Choose Me? - ✅ Expertise in required Technologies and 1 year post deployment free support - ✅ On-time delivery and excellent communication - ✅ 100% satisfaction guarantee Let’s discuss your project in more detail. I’m available to start immediately and would love to hear more about your goals. Looking forward to working with you! Best regards, Deepak
₹375,000 INR in 7 days
5.2
5.2

Having worked on numerous mobile app projects, ranging from messenger apps to e-commerce platforms, I am confident in my ability to deliver a WhatsApp-style messenger app that meets all your requirements. My proficiency in React Native - known for its cross-platform capabilities and quick development time - makes me the perfect fit for this task. I can ensure a smooth user experience across all three platforms – iOS, Android, and web – along with timely push notifications using reliable real-time technologies like Socket.io. Communication is key to any messaging app and I understand the importance of having clear indicators like read receipts and typing notifications. Further, as a full stack developer, I’ll handle not only the client-side development but also build a scalable backend with secure user authentication and media storage. With 5+ years of front-end and back-end development experience to my credit, paired with my passion for quality code and timely delivery, you can trust me to handle your WhatsApp-style Messenger App project with professionalism and expertise. Let's join hands to turn your dream application into reality!
₹375,000 INR in 21 days
4.8
4.8

Dear Sir/Madam, I am Kishore Patidar, a professional Mobile App and Python Developer with strong experience in building scalable, production-ready mobile applications and backend systems. I specialize in Flutter (cross-platform), Android (Java/Kotlin), Firebase, Supabase, Node.js, FastAPI, and Django. I have successfully delivered multiple live apps on both Google Play Store and Apple App Store, including fintech, healthcare, education, social networking, and on-demand service platforms. My expertise includes: • Cross-platform mobile app development (Flutter) • Backend API development (Node.js, FastAPI, Django) • Payment Gateway integration (PhonePe, Razorpay, Stripe) • Real-time chat & notification systems • Admin panel & dashboard development • App deployment & store publishing • Secure authentication & role-based systems I focus on clean architecture, scalable backend design, optimized performance, and smooth user experience. From idea to deployment, I can handle complete end-to-end development. I would be happy to discuss your project requirements and deliver a reliable, high-quality solution within timeline. Looking forward to working with you. Best Regards, Kishore Patidar Mobile App / Python Developer
₹280,000 INR in 60 days
4.8
4.8

Surat, India
Member since Dec 3, 2024
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