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I will develop your react native expo mobile app with supabase firebase ai integration
Newton G
About this gig
Looking for a high-performance cross-platform mobile app that runs smoothly on both Android and iOS? You're in the right place.
I specialize in building scalable, secure mobile applications using React Native, Expo, Supabase, and Firebase, with optional AI integration for smarter features.
What I Offer:
- Cross-platform mobile app development (Expo Router, TypeScript)
- Pixel-perfect, responsive UI/UX
- Authentication (Email/Password, Google, Apple, X, Supabase Auth, Firebase Auth)
- Database design with Supabase (PostgreSQL) or Firebase (Firestore)
- Row-level security and role-based access control
- Realtime data sync and cloud storage
- Push notifications and analytics integration
- API integration (REST, third-party services)
- AI features using OpenAI, Gemini, or Anthropic
- Maps, chat, and booking-style apps
- Figma to React Native conversion
Payment Integrations:
- RevenueCat (in-app purchases, subscriptions)
- Stripe / PayPal
- Mpesa
Why Work With Me:
- Clean, scalable, production-ready code
- Clear communication and fast response times
- On-time delivery with proper testing
Let's turn your idea into a real, working app.
Message me before ordering so I can scope your project accurately.
Get to know Newton G
Newton G
Full Stack Mobile and Web Developer, React Native, Expo, Next js, Supabase, AI
- FromKenya
- Member sinceJun 2026
- Avg. response time1 hour
Languages
English, French
Full-stack developer specializing in React Native (Expo) and Next.js apps backed by Supabase and Firebase. I build production-ready mobile and web apps: clean architecture, secure auth, scalable databases with row-level security, and AI-powered features when needed. I also design backend systems from scratch (schema design, RLS policies, RPCs, edge functions) and automate workflows with Make.com and n8n. I focus on writing maintainable code, clear communication, and delivering apps that actually work in production, not just demos. Let's build something solid together.
My Portfolio
FAQ
Do you build for both iOS and Android?
Yes. I use React Native with Expo, so your app runs on both platforms from a single codebase. I can also build a separate web version using Next.js if needed.
Do I need to provide a design, or can you design the UI yourself?
Either works. If you have Figma files or mockups, I'll build directly from them. If not, I can design a clean, modern UI based on your requirements and reference apps you like.
What is the difference between Supabase and Firebase, and which one should I use?
Both are solid backend platforms. Supabase uses PostgreSQL and is a great fit if you need relational data and row-level security. Firebase uses Firestore and is a good fit for simpler, document-based apps. I can recommend the right one once I understand your data structure.
Will I own the source code?
Yes. Once the project is complete and paid in full, you receive full ownership of the source code and all related assets.
Do you handle App Store and Google Play submission?
Yes, this is available. I can prepare your build, set up developer accounts if needed, and guide you through the submission process for both stores.
Can you integrate AI features like chatbots or smart recommendations?
Yes. I work with OpenAI, Gemini, and Anthropic APIs to add AI-powered features such as chat assistants, content generation, or smart search.
How do we communicate during the project?
Primarily through Fiverr messages. For larger projects, I can provide progress updates with screenshots or short demo videos at key milestones.
What information do you need from me before we start?
A clear description of your app's purpose, target users, core features, and any design references. The more detail you provide upfront, the more accurate my time and cost estimate will be.
Do you offer ongoing maintenance after the project is delivered?
Yes, this can be arranged separately as an ongoing engagement or a maintenance package, depending on your needs.
