You will get a Mobile App API Integration with REST APIs & Third-Party Services
Top Rated
Project details
Integrate your mobile app with reliable, secure, and scalable APIs backed by 13+ years of development experience. We specialize in integrating REST APIs and third-party services into Flutter and React Native applications, ensuring seamless communication between your app and backend systems.
Our expertise includes authentication, payment gateways, social login, maps, push notifications, Firebase, Supabase, cloud services, analytics, real-time data synchronization, and custom backend APIs. We focus on clean architecture, secure data handling, optimized performance, and maintainable code to deliver integrations that are stable and ready for production.
Whether you need a single API integration or a complex ecosystem connecting multiple services, you'll receive high-quality development, transparent communication, comprehensive testing, and complete source code tailored to your project requirements.
Our expertise includes authentication, payment gateways, social login, maps, push notifications, Firebase, Supabase, cloud services, analytics, real-time data synchronization, and custom backend APIs. We focus on clean architecture, secure data handling, optimized performance, and maintainable code to deliver integrations that are stable and ready for production.
Whether you need a single API integration or a complex ecosystem connecting multiple services, you'll receive high-quality development, transparent communication, comprehensive testing, and complete source code tailored to your project requirements.
Platform
Mobile WebApp Type
Hybrid AppDevelopment Technology
Flutter, React NativeApp Purpose
AR, Chat, Dating, Delivery, Finance, Entertainment, Education, Health & Fitness, IoT, KidsExpertise
Cross Browser & Device Compatibility, Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$500
|
Standard
$1,500
|
Advanced
$3,000
|
|---|---|---|---|
| Delivery Time | 5 days | 10 days | 20 days |
Number of Revisions | 2 | 3 | 4 |
App Store Upload | - | ||
Source Code |
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MG
Matteo G.
Aug 29, 2026
Server & PHP Upgrade
They did a great work with upgrading our code and server.
Each problem that came up was resolved and our new platform is faster and more stable.
I highly recomend them.
Each problem that came up was resolved and our new platform is faster and more stable.
I highly recomend them.
BK
Bharath K.
Aug 12, 2026
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Bharath K.
Jul 30, 2026
Annual Maintenance Website Contract
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Bharath K.
Jul 30, 2026
Design + Interactive Webpage
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Bharath K.
Jul 30, 2026
Design + Product Webpage
About Anjali
Mobile App Developer | Flutter | React Native | iOS | Android |AI Apps
100%
Job Success
Kozhikode, India - 7:53 am local time
Hi there! 👋 I'm Anjali, a Senior Mobile App Developer with 12+ years of software development experience, specializing in building high-performance, cross-platform mobile applications using Flutter and React Native for iOS and Android.
I help startups, SMEs, and enterprises transform their ideas into scalable, user-friendly mobile applications that deliver real business value. From MVPs to enterprise-grade applications, I focus on clean architecture, seamless user experiences, and long-term maintainability. I also specialize in integrating AI-powered features using OpenAI, Gemini, Claude, and other LLMs to create smarter mobile experiences.
My work goes beyond writing code. I approach every project with a product mindset—understanding your business goals, recommending the right technical solutions, and building apps that are reliable, scalable, and ready for growth.
Whether you need a new mobile app from scratch, migration from native to Flutter or React Native, AI integration, backend connectivity, or ongoing maintenance, I can take ownership of the complete development lifecycle—from planning and development to deployment and long-term support.
With 565+ successfully completed contracts on Upwork, a 100% Job Success Score, and Top Rated status, I have helped businesses worldwide launch and scale successful mobile applications.
What I Deliver
✔ Cross-platform mobile app development with Flutter & React Native
✔ Native-like performance for iOS and Android
✔ AI-powered mobile applications and chatbot integration
✔ Firebase integration (Authentication, Firestore, FCM, Analytics, Crashlytics)
✔ REST API & GraphQL integration
✔ Payment gateway integration (Stripe, Razorpay, PayPal)
✔ Real-time chat, push notifications, maps, GPS & geolocation
✔ App performance optimization and bug fixing
✔ Google Play Store & Apple App Store deployment
✔ Long-term maintenance, feature enhancements, and support
Technologies & Tools
✔ Mobile: Flutter, React Native, Dart, JavaScript, TypeScript
✔ Backend: Node.js, Laravel, PHP, Express.js, REST APIs
✔ Database & Cloud: Firebase, MySQL, PostgreSQL, MongoDB, AWS
✔ AI Integration: OpenAI, Gemini, Claude, LangChain, Vision APIs, RAG
✔ Tools: Android Studio, Xcode, Git, Firebase Console, Google Play Console, App Store Connect, Figma
If you're looking for a reliable mobile app developer who can build a high-quality, scalable application from concept to launch, I'd love to discuss your project.
Click the "Message" or "Invite" button, and let's build something amazing together.
Full Stack Developer | Mobile App Developer | Full Stack AI Developer | iOS Developer | Android App Developer | Mobile App Development | Cross Platform Development | AI App Developer | Hybrid App Development| Flutter | React Native | Firebase | Supabase | Laravel Developer | Next.js Developer | React Developer | Node.js Developer | AI integration | AI Chatbot | Lang Chain | n8n Expert | Make AI Expert | SaaS Application |Open AI API | REST API Development | Typescript | Automation Expert | Back End Developer | Front End Developer | Nest.js | API Integration |
Steps for completing your project
After purchasing the project, send requirements so Anjali can start the project.
Delivery time starts when Anjali receives requirements from you.
Anjali works on your project following the steps below.
Revisions may occur after the delivery date.
Requirements Review & API Analysis
We will review your project requirements, API documentation, authentication methods, and third-party services to define the integration approach.
API Integration
We will integrate the required REST APIs or third-party SDKs into your Flutter or React Native application, ensuring secure communication and proper data handling.