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I will do mobile app development app developer flutter react native app creation
Liam Kienert
About this gig
Need a mobile app that works on iOS and Android without building two separate codebases?
I'm a mobile app developer specializing in Flutter and React Native building cross-platform apps that look native, perform fast, and scale with your business.
What you'll get:
- Cross-platform iOS & Android app
- Clean, responsive UI with native feel
- Secure User auth sign-up, login, biometrics
- API & backend integration (REST, GraphQL)
- Push notifications & real-time features
- Stripe payments & in-app purchases
- App Store & Google Play deployment
- Clean code & full handoff documentation
What I build:
- SaaS mobile apps
- AI-powered apps
- E-commerce
- Social platforms
- On-demand services
- Healthcare
- Fintech
- Education
My stack: Flutter · React Native · Expo · TypeScript · Supabase · Firebase · Node.js · Stripe · REST APIs · Vercel
Your competitors are already on mobile. Let's get you there fast, clean, and built to last.
Message me your app idea. I'll come back with architecture, timeline, and fixed price no fluff, no surprises.
Get to know Liam Kienert
Liam Kienert
AI Software and LLM Developer
- FromUnited States
- Member sinceAug 2026
- Avg. response time4 hours
Languages
English, German, French, Spanish
I'm Liam, a fullstack AI developer with 6+ years building production grade web apps and 3 years focused on AI SaaS, automation, and autonomous agent systems.
I build:
✅ AI SaaS MVPs - React, Supabase, Claude API, OpenAI, Stripe
✅ AI Agents & Automation - n8n, multi-step workflows, CRM integration
✅ Full-Stack Web Apps - Next.js, TypeScript, Node.js, PostgreSQL
Every build is modular; fixed scope, working demos, no surprises.
💬 Send your idea and I'll reply with a clear plan to move forward.
My Portfolio
FAQ
Flutter or React Native — which should I choose?
Both are excellent cross-platform frameworks. Flutter gives you pixel-perfect UI control and great performance; ideal for visually rich or custom designed apps. React Native is a better fit if your team already knows JavaScript or you need deep integration with existing web code.
Will the app work on both iOS and Android?
Yes. Both Flutter and React Native are cross-platform; one codebase, two stores. You get a fully native-feeling experience on both platforms without the cost of building two separate apps
Can you add AI features to my mobile app?
Absolutely. I integrate Claude API, OpenAI, and Gemini into mobile apps, including AI chat interfaces, document processing, content generation, image analysis, and recommendation engines. The AI Feature Integration add-on covers this.
Do you handle App Store and Google Play submission?
Yes, this is available as an add-on. I handle everything: screenshots, store descriptions, metadata, privacy policy requirements, and the submission process. I'll also help respond to any reviewer feedback that comes back.
What do you need from me to get started?
A description of your app idea, your target platform (iOS, Android, or both), any existing designs or wireframes, and your launch timeline. No designs? No problem, UI/UX direction is part of the scoping conversation.
