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I will build cross platform mobile apps with react native
Jonathan Adel
About this gig
What I Build: Cross-platform mobile apps built with React Native one codebase running on both iOS and Android, with real backend integration, not a static UI shell.
What You Get:
- A functional app running on both platforms from one codebase
- Real backend integration not mockup or placeholder data
- Smooth performance and native-feeling navigation
- Clean, maintainable code, easy to extend later
- Secure handling of user data and authentication
- A polished interface that feels like a real app, not a prototype
Tech Stack:
Frontend: React Native, TypeScript, Expo
Backend: Node.js, Express.js
Databases: PostgreSQL, MongoDB, Prisma ORM
Auth: OAuth, email/password, secure token-based sessions
Other: REST APIs, push notifications, app store deployment guidance
What's Included:
- Requirements review to define core features and flow
- Full build: UI, backend logic, database integration
- Authentication where needed
- Testing across iOS and Android
- Post-delivery bug fixing no time limit
Ideal For:
Founders and businesses needing a cross-platform app a companion app to an existing product, or a standalone mobile-first idea.
Get to know Jonathan Adel
Jonathan Adel
Full Stack Developer specializing in Next, MERN, PERN Stack, and React Native
- FromEgypt
- Member sinceMay 2022
- Last delivery3 years
Languages
English, Arabic, French
Hi, I'm Jonathan — a full-stack developer specializing in the MERN/PERN stack and Next.js, with hands-on experience building production software, including a live ERP system used by a real school.
I build complete web and mobile apps end-to-end — frontend, backend, and database — focused on clean architecture and code that holds up as products grow. I also work with React Native for cross-platform apps, and use AI-assisted workflows to deliver efficiently without cutting corners.
If you need a working product built right, not just something that looks good in a demo, I'm ready to help.
My Portfolio
FAQ
"Do you build for both iOS and Android?"
Yes — React Native lets me build one app that runs on both platforms from a single codebase, so you're not paying for two separate builds.
"Do you handle App Store and Google Play submission?"
Yes — if you have your developer accounts and credentials ready, I'll fully handle the Google Play submission process for you.
"Do you provide backend hosting?"
I set up and configure the backend and database, but ongoing hosting costs are billed separately to your accounts — I don't cover infrastructure fees.
"What happens after the app is delivered — do you offer support?"
Yes — I stand behind my work. If a bug shows up in what I delivered, I'm available to fix it, no time limit attached. Ongoing maintenance or new feature requests are a separate arrangement.
"Do I own the code once the project is done?"
Yes — full ownership transfers to you on final payment, including source code and any credentials I set up.
"How do you handle scope changes mid-project?"
I'll let you know before starting, so we can agree on the scope together — no surprises mid-work.
