I will do mobile app development build mobile app developer react native ai app


About this gig
Struggling with buggy apps, missed deadlines, or App Store rejections?
I develop production-grade React Native mobile apps that work flawlessly on both iOS and Android from a single codebase. My own app ExamPress is live on Google Play with users built, shipped, and maintained entirely by me.
️ What I build:
Full-featured cross-platform apps e-commerce, social, fitness, productivity, SaaS, or any custom idea
Complex native integrations camera, file system, background tasks, device sensors, custom native modules (ObjC/Java)
Firebase & backend authentication, Firestore, FCM push notifications, real-time data sync
Monetization Google AdMob (interstitial, rewarded, banner), in-app purchases
Offline-first architecture local storage, background processing, works without internet
I handle the hard stuff too:
- Image/PDF processing & compression algorithms
- App Store & Play Store submission
- Performance optimization & bug fixes
- Push notification systems with scheduled reminders
Stack: React Native Expo TypeScript Firebase AdMob Reanimated REST APIs
Process: Discovery Architecture Development Testing Delivery with full source code
Message me before ordering.
Get to know Banka
Software Engineer
- FromIndia
- Member sinceMar 2021
- Last delivery4 years
Languages
English, Assamese, Hindi
My Portfolio
FAQ
Do you provide the full source code?
Yes, always. You receive 100% ownership of the source code, fully documented and organized. You're free to maintain, extend, or hand it off.
Can you build both iOS and Android from one codebase?
Yes. I use React Native with Expo, which produces native iOS and Android apps from a single TypeScript codebase — saving you time and cost.
Will you help with App Store and Play Store submission?
Yes. My Premium package includes generating signed builds, writing store listings, configuring screenshots, and handling the full submission process for both platforms.
Can you integrate Firebase, push notifications, or ads?
Absolutely. I have production experience with Firebase Auth, Firestore, Cloud Messaging (FCM), Google AdMob (interstitial, rewarded, banner), and Expo Notifications.
I already have a React Native app with bugs. Can you fix it?
Yes. My Basic package covers bug fixes, performance optimization, or adding a specific feature to your existing React Native or Expo project.
Do you build apps that work offline?
Yes. I specialize in offline-first architecture using AsyncStorage, local databases, and on-device processing. Users can use core features without internet.
Can you connect my app to a backend or REST API?
Yes. I integrate with any REST or GraphQL API — whether it's your existing backend, Firebase, Supabase, or a third-party service.
What types of apps can you build?
E-commerce, social media, fitness, productivity, SaaS tools, utility apps, document scanners, booking systems — any custom mobile app idea you have.
How do you communicate during development?
I send regular progress updates with screenshots and screen recordings through Fiverr chat. You'll always know exactly where your project stands.
What if my project doesn't fit your packages?
Message me before ordering. I review every project individually and send a custom offer tailored to your exact scope and budget. No generic quotes.

