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I have an existing mobile application that runs on both iOS and Android, and I now need a seamless integration with a third-party API. Your job is to wire the app to the new endpoints, handle authentication, parse the responses, and make sure everything is production-ready across the two platforms. The core tasks include: • Plugging the API into the existing codebase (both iOS and Android versions) • Implementing secure token or key management in a way that satisfies App Store / Google Play guidelines • Creating clean, reusable service classes or modules so future endpoints can be added easily • Adding thorough error handling, retries, and graceful fallbacks for poor connectivity • Writing concise in-code comments plus a short integration guide so my team can maintain it later • Testing the finished build on real devices for each platform and confirming the calls succeed end-to-end When you hand the project back, I expect the updated source code, a brief changelog, and a quick demo clip or TestFlight/Internal-Test APK that shows the integration working. If you have experience with Swift, Kotlin, or a cross-platform stack such as React Native or Flutter, please mention it when you respond.
N° de projet : 40238071
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50 freelances proposent en moyenne ₹944 INR/heure pour ce travail

Hello! I can integrate the third-party API cleanly into your existing iOS and Android codebases, ensuring secure authentication, reusable architecture, and production-grade reliability. Proposed Architecture: Core Engine • Dedicated API service layer in Swift (iOS) and Kotlin (Android) or shared module if cross-platform • Secure token handling using platform-secure storage (Keychain for iOS, EncryptedSharedPreferences for Android) • Centralized networking layer with reusable request/response models • Clean abstraction so new endpoints can be added without refactoring Flow • Implement authentication handshake and token lifecycle management • Map and parse API responses into typed models • Integrate new data into existing UI flows • Add retry logic, timeout handling, and offline fallbacks • Validate calls end-to-end on real devices Performance Strategy • Background-safe network calls with proper threading • Structured error mapping for consistent UX messaging • Rate-limit handling and exponential backoff • Minimal performance overhead with optimized parsing You’ll receive updated source code, a concise changelog, inline comments, and a demo build via TestFlight and internal Android track. Let’s define your benchmark set and preferred hosting environment so we can move quickly. Best regards, Jasmin
₹1 000 INR en 40 jours
9,4
9,4

Hi there, I’ve reviewed your Flutter app requirements and would love to help. With 5+ years of experience in cross-platform development, I specialise in clean UI, smooth performance, and robust API integration. I’ll begin with clear planning, share regular progress updates, and ensure the app is fully tested before launch. Let’s connect to discuss your vision — I’m ready to get started! Best, Bhargav Flutter Developer | Android & iOS Expert
₹750 INR en 40 jours
6,9
6,9

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 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 , java spring boot and php CodeIgniter mvc. Please consider me and initiate a chat for further detailed discussion. Regards, Anju Logical Soft Tech Pvt Ltd, Indore(M.P)
₹1 000 INR en 40 jours
6,5
6,5

Hello Client, Greeting of the day!!!! I read your job description. I have STRONGEST Mobile development expert team and have been DEVELOPED 150+ Apps, three dating app, Two Customer and service provider app based on GPS location and notification functionality and based on different domain like sports, Health, GYM, personal business and social etc I have testing team for testing apps. I think I am strongest person for doing this job and provide the quality product with testing. I am always available for your support. Thanks
₹750 INR en 40 jours
6,7
6,7

I’m a mobile developer with 6.5+ years of experience in iOS, Android, and Flutter, specializing in secure API integrations. I can plug your third-party API into both platforms quickly and cleanly. ✔ Secure token handling (Keychain / EncryptedStorage) ✔ Clean, reusable service layer ✔ Proper error handling + retries ✔ Real-device testing ✔ Updated source + demo build Ready to start immediately once API access is shared.
₹850 INR en 35 jours
4,4
4,4

As an API integration specialist with a keen eye for both iOS and Android platforms, I'm in a prime position to sprinkle some coder's magic on your project. I understand that ensuring system-wide compatibility, from authentications to handling diverse responses plays a pivotal role in an APIs' success. Over the past 13 years, I’ve garnered immense experience building high-performing mobile apps for numerous industries. Be it Swift or Kotlin, native or cross-platform like React Native or Flutter, my skills extend seamlessly to produce production-grade code. Incorporating a secure token management in line with App Store and Google Play guidelines requires a blend of technical finesse and adherence to API policies. My track record not only boasts of successful API integrations but also of maintaining 100% Job Success Rate. This speaks volumes about my dedication towards eliminating technical debt while working at pace - essential traits for this project. Lastly, delivering clean, reusable service classes and thoroughly tested builds with concise in-code comments is not a concern it is my standard operating procedure! Over a decade's worth of writing reusable codes and automating testing processes has ingrained it in me. If you recruit me for this task, rest assured, your endpoints will be meticulously plugged into your codebase for easy maintenance going forward. Let's take this project to new heights together!
₹1 000 INR en 40 jours
4,8
4,8

Hello There, I hope you are doing well! I am a Senior Mobile App Developer and I’ve worked on iOS (Swift), Android (Kotlin), and cross-platform apps (React Native / Flutter), integrating third-party APIs with secure token handling, structured service layers, and production-grade error management. I focus on building clean, reusable API modules so adding new endpoints later is simple and consistent. For your app, I’ll implement secure token/key storage aligned with App Store and Google Play guidelines, add proper retry logic and graceful fallbacks for weak connectivity, and ensure responses are parsed reliably across both platforms. I’ll also include concise documentation, clear comments, and test on real devices before delivery. You’ll receive updated source code, a short changelog, and a demo build showing the integration working end-to-end. Let’s review the API documentation and your current architecture so I can outline the exact approach and timeline. Thanks & Regards!
₹1 300 INR en 40 jours
4,3
4,3

Hello, I’m Karthik, a Mobile & Backend Architect with 15+ years of experience integrating third-party APIs into production iOS and Android apps. I’ve worked with Swift, Kotlin, Flutter, and React Native codebases, handling secure auth flows and scalable service-layer design. ### How I’ll Approach Your Integration ✔ Connect new endpoints cleanly within existing architecture ✔ Implement secure token/key management (Keychain on iOS, EncryptedSharedPrefs/Keystore on Android) compliant with App Store & Play guidelines ✔ Build reusable service/network modules for future endpoint expansion ✔ Add robust error handling, retry logic, timeout management, and offline fallbacks ✔ Log meaningful errors without exposing sensitive data All calls will be tested end-to-end on real devices to ensure stability under real network conditions. ### Deliverables • Updated source code (iOS + Android) • Clear changelog • Short integration guide • Demo build (TestFlight + signed APK/AAB) I focus on clean architecture, maintainability, and production-grade stability—not quick patches. Ready to review your existing codebase and API docs to define a structured integration plan.
₹1 300 INR en 40 jours
3,2
3,2

Hello Sir, I’d be happy to help integrate the third-party API into your existing iOS and Android apps. I have strong experience working with Swift (iOS), Kotlin (Android) and also cross-platform stacks like Flutter, so I’m comfortable adapting to your current codebase. Here’s how I’ll approach it: • Cleanly connect the new API endpoints into both apps without disturbing existing functionality • Implement secure token/key handling (Keychain for iOS, Encrypted Storage/Keystore for Android) aligned with App Store and Google Play guidelines • Build reusable, well-structured service layers so adding future endpoints is simple • Add proper error handling, retry logic, and graceful fallbacks for weak network conditions • Include clear inline comments + a short integration guide for your internal team Before delivery, I will test thoroughly on real devices (ios and android) to ensure authentication, request flow, and response parsing work end-to-end. You will receive: • Updated production-ready source code • Brief changelog • TestFlight build / Internal testing APK • Short demo video showing the integration working My focus is clean architecture, security, and long-term maintainability — not just “making it work,” but making it scalable. Looking forward to collaborating with you. Best Regards Jitendra Sharma
₹750 INR en 40 jours
3,2
3,2

Hi API integrations are my thing — clean, secure, and future-proof. I’ll connect your iOS + Android apps to the new endpoints with proper auth handling, reusable service modules, and strong error/retry logic so everything runs smoothly even on weak networks. You’ll get: • Secure token/key management (App Store & Play compliant) • Clean service layer for easy future endpoints • Solid error handling + fallbacks • Well-commented code + short integration guide • Tested on real devices • Updated source, changelog, and demo build Experienced with Swift, Kotlin, and cross-platform stacks, so working inside an existing codebase won’t be an issue. If you want this integration done once and done right — I’m ready
₹1 000 INR en 40 jours
2,7
2,7

Hi, This integration aligns well with the type of cross-platform API work I regularly handle. I have 5+ years of experience building and maintaining production mobile apps, including secure API integrations, authentication flows, and resilient networking layers. I can wire the new endpoints into both platforms, structure reusable service modules, implement proper token management, add robust error handling with retries, and ensure the implementation is production-ready. I’ll also include clear code comments, an integration guide, and device testing to validate end-to-end behavior. Delivery will include updated source code, changelog, and a demo build. My background includes Swift (iOS), Flutter, and API-heavy mobile architectures. I’m comfortable working within existing codebases and maintaining clean, scalable structure for future expansion. Happy to review your current setup and get started. Best, Kevin
₹900 INR en 40 jours
2,8
2,8

Hi, I can help you integrate the third-party API into your existing iOS and Android apps smoothly and securely. I have experience working with Swift, Kotlin, and cross-platform stacks like React Native and Flutter, and I understand App Store and Google Play security requirements. Here’s how I’ll handle it: Integrate the new API endpoints into both codebases cleanly Implement secure token/key management following platform guidelines Create reusable service modules so future endpoints are easy to add Add strong error handling, retries, and graceful fallbacks for weak networks Write clear in-code comments + a short integration guide Test on real devices to confirm end-to-end success You’ll receive: Updated source code Brief changelog Demo video or TestFlight / Internal Test APK build I focus on clean architecture and production-ready delivery, not quick patches. Happy to discuss your current tech stack and API details
₹1 000 INR en 40 jours
2,4
2,4

Hello, I am excited about the opportunity to assist with your mobile app API integration. - I have extensive experience with Flutter and have successfully integrated APIs in similar projects. - My plan includes: 1. Requirement analysis 2. API documentation review 3. Integration and testing 4. Deployment - I utilize tools like Postman and Firebase for efficient integration. - I can deliver within 2 weeks, with regular updates via your preferred communication channel. Choose me for my commitment to quality and timely delivery. What specific APIs do you need integrated? Are there any particular features you want to prioritize? Regards, Bharti M.
₹2 000 INR en 40 jours
2,9
2,9

With my proven track record of 6+ years in Full Stack Development, I can confidently handle your Mobile App API Integration project. I possess the technical prowess needed to flawlessly wire third-party APIs into your existing codebases on iOS and Android, while ensuring secure token management in accordance with App Store and Google Play guidelines. I pride myself on writing clean and reusable service classes, with the future in mind, so you can easily add more endpoints if the need arises. One area where I excel is creating comprehensive error handling systems. Connectivity issues can greatly impact user experience, and that's why I incorporate thorough error handling, retries, and graceful fallbacks for poor connectivity in my work. In addition to well-commented in-code documentation that comes with the finished product, I provide an integration guide which will enable your team to easily maintain the API integration later. Testament to my dedication to quality is my commitment to perform real device tests on each platform and confirm that every call is successful end-to-end. Upon completion of the project, you'll receive the entire source code along with a changelog that details the updates made. And just to seal the deal, I'll also send you a quick demo clip or TestFlight/Internal-Test APK demonstrating the seamless integration process at work.
₹800 INR en 40 jours
1,6
1,6

Hi there, I’m Dhaval from Codeline Infotech LLP. We can integrate your third-party API into the existing iOS and Android app with secure token handling, reusable service layers, robust error management, and production-ready testing. We have 7 years experience with Flutter, Swift, Kotlin, REST APIs, secure authentication flows, and scalable mobile architecture. Best regards, Dhaval V.
₹750 INR en 40 jours
1,5
1,5

Hello, Greetings! I’m a senior full-stack developer with 6+ years of experience in building scalable mobile and web applications. I specialize in cross-platform and native mobile development using Flutter, React Native, Swift (iOS), and Kotlin/Java (Android), along with strong backend expertise in Node.js, Django, FastAPI, and Laravel, supported by modern cloud technologies. My team and I build end-to-end mobile solutions including custom dashboards, internal tools, automation systems, role-based platforms, secure APIs, real-time features, payment integrations, push notifications, and complete app store deployments. We focus on creating smooth user experiences, clean architecture, and reliable performance. We’ve worked on numerous mobile projects with different requirements and complexities, helping clients turn their ideas into well-designed, high-performing applications. Your project aligns well with our technical skills and development approach. I’d be happy to discuss your project scope, ideas, and goals, and suggest the best technical approach. Best regards, Suman Joshi
₹1 000 INR en 40 jours
0,0
0,0

As an API integration specialist with extensive experience in both iOS and Android development, I am incredibly well-suited to taking on and successfully completing your project. My skills as a seasoned developer help me not only to plug-in the API seamlessly but also allow me to effectively implement secure token management, create clean service classes or modules for future endpoints, add thorough error handling, and write concise in-code comments - all critical tasks for your project. In terms of my proficiency with API integration, let me assure you that I have a proven track record of successfully integrating various third-party APIs into different mobile applications. Additionally, my strong command over both Swift and Kotlin makes me versatile in dealing with programming languages specific to iOS and Android respectively. This means I can handle your project requirements with equal ease and efficiency across different platforms.
₹1 250 INR en 40 jours
0,0
0,0

Hi there, You’re absolutely in the RIGHT PLACE. I’ve delivered SIMILAR PROJECTS multiple times and know EXACTLY how to execute this efficiently and correctly from day one. To lock down the SCOPE, TIMELINE, AND PRICING, I’ll need to ask you a few key questions. Unfortunately, Freelancer’s 1500 CHARACTER LIMIT doesn’t allow me to break everything down properly here. Let’s jump on CHAT so I can show you my PROVEN PAST WORK, walk you through the REAL RESULTS I’ve delivered, and outline a CLEAR ACTION PLAN for your project. You’ll immediately see why my approach is DIFFERENT and EFFECTIVE. If you’re serious about getting this done RIGHT, I’m ready to move forward. Looking forward to CONNECTING and WINNING TOGETHER. Cheers, Aayushaman Sahu
₹1 000 INR en 40 jours
0,0
0,0

Hey I can help you integrate the third-party API into your existing iOS and Android apps smoothly and securely. I’ve worked extensively with Swift (URLSession / Alamofire), Kotlin (Retrofit / Ktor), and cross-platform stacks like React Native and Flutter, wiring production apps to external APIs with proper authentication, modular architecture, and store-compliant security practices. **I will deliver**: --> Clean integration of the new endpoints into both codebases --> Secure token/key handling aligned with App Store and Google Play guidelines (Keychain / EncryptedSharedPreferences, etc.) --> Reusable service layer architecture for easy future endpoint expansion --> Robust error handling, retries, timeout logic, and graceful offline fallbacks --> Clear in-code documentation + a concise integration guide for your team --> Real-device testing on both platforms to verify end-to-end success --> Final source code, changelog, and demo build (TestFlight / Internal Test APK) **I focus on clean architecture, maintainability, and production-ready delivery — not just “making the API call work** ```I am willing to have a quick chat or call to discuss all the requirements in details and show you our previous completed Similar project by screen share``` Happy to review your current codebase and get started right away. Thanks Regards Abhishek
₹1 000 INR en 40 jours
0,0
0,0

I’m currently working as a Software Engineer at Viaplus (Jan 2025 – Present) where I develop modular monolith and microservices systems using Python, FastAPI, MongoDB, Docker, and Flutter. I’ve already delivered real-world integrations similar to your requirement
₹1 000 INR en 40 jours
0,0
0,0

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