React Native apps that feel native.
Ship to both app stores from a single codebase — without two teams, two bug lists, or a wrapped webview pretending to be an app.
“I had the pleasure of working with Osaf, and I can confidently say he exceeded every expectation. He is extremely smart, curious, and consistently punctual. An absolute gem to work with. During our engagement, he contributed far beyond his role: Built complete test pipelines for both the frontend and backend from scratch, robust, clean, and reliable. Demonstrated deep understanding of asynchronous systems and implemented solutions that were efficient and well-architected. Showed excellent backend engineering skills, especially in Django. Created automation scripts to streamline frontend workflows, including automated tag-adding tools that saved our team significant time. Writes excellent documentation. In fact, when he first joined us as an intern, we tasked him with fixing the backend setup documentation (which had several issues, especially around PostgreSQL). He handled it meticulously and improved the onboarding process for every future developer. He is proactive, communicates clearly, and brings a problem-solving mindset to every task. Truly a standout engineer with a bright future ahead. I'd work with him again without hesitation.”
Javeed Yara
SDE - Austin AI
“I hired Osaf for a few small Django site updates, and he ended up improving much more than expected. He proactively fixed layout and content issues, cleaned up templates, and modernized the site overall. He worked in the CST timezone, which made communication smooth and quick. He delivers clean, professional results without needing constant direction. Fast, responsive, and easy to work with - will definitely hire again.”
Steve Rose
JailWatch Pro - Upwork
“Great work from Osaf. He did the project exactly as requested.”
Kenny Joseph
Cryptodashboard - Upwork
“Outstanding experience. Osaf quickly understood our existing Django and Next.js application and resolved several backend, frontend, and AI-related issues with precision. Their debugging approach was structured and efficient, and communication was excellent throughout the project. Everything was delivered on time with clean and maintainable code. I would absolutely work with them again and highly recommend them for complex full-stack and AI-related projects.”
Majid Ali
Full Stack AI Developer - Upwork
Most of the pain in mobile app development isn't the code — it's everything around it.
Building iOS and Android twice
Two native codebases means two teams, two bug lists, and two things to keep in sync every time you ship a change.
Feels sluggish, not 'native'
A badly built cross-platform app gives the whole approach a bad name — janky animations, laggy lists, screens that feel like a webview.
Stuck getting into the app stores
Signing, provisioning, and the App Store and Play Store review process are their own project if you haven't done it before.
Built with React Native, shipped to both stores, and maintained from one codebase.
True React Native
One codebase, two stores
Built with React Native and Expo, shipped to the App Store and Play Store from a single codebase — and sharing logic with your web app if you have one.
Native feel
Not a wrapped webview
Proper navigation, animations, and platform conventions, so it feels like it belongs on the phone it's running on.
Native APIs when you need them
Push, offline, camera, location
Push notifications, offline support, and device APIs like camera, location, and biometrics — wired in properly, not bolted on.
Store submission handled
Under your own accounts
I handle signing, provisioning, and the review process under your own Apple and Google developer accounts, so you keep full control.
Discovery & prototyping
We define the core screens and flows, and I set up the project against your design or wireframes.
Build core flows
The main screens and logic come together. You get a build to test on your own phone early.
Internal testing
TestFlight and internal Play Store testing, bug fixes, and polish based on real usage.
Store submission & handover
Submitted to both stores under your accounts, resubmissions handled if needed, code and docs handed over.
Why React Native instead of native Swift or Kotlin?
One codebase is faster to build and cheaper to maintain long-term, and it still compiles down to a real native app — not a webview.
Do I need a backend too?
I can build one alongside the app, or connect it to an API you already have. See Custom Software & SaaS Development if you need both.
Who owns the app store accounts?
You do. I publish under your own Apple Developer and Google Play accounts, so you keep full control after handover.
How long does app store review take?
Typically one to three days for Apple, a few hours for Google. I handle any resubmissions if something gets rejected the first time.
Fixed price. No surprises. You own everything at the end.