Mobile App Development
React Native app development
one codebase that ships to both stores
React Native app development: one codebase, both stores, one engineer who owns the API behind it. We built Offline by Happy Hour: 50,000+ users in 20+ cities. The hard part was never the screens. It is the lift on a bad connection, the writes queued offline, and what happens when both come back at once.
An iOS build, no Android, no backend
Your app drains battery, or it breaks the moment someone goes offline and comes back. Maybe a freelancer handed over an iOS build with no Android, no backend and no signing certificate you control. Here is the test: ask whoever holds the project for a fresh TestFlight build this week, from the code as it stands today. Stalled apps fail at that step, and it is the cheapest thing you will ever learn about yours.
How we work
How we ship it
Define the core flows
We prototype the three or four screens users actually live in before building anything peripheral.
Build app and backend together
The client and its API get written by the same person in the same week, so sync, auth and offline behaviour are decisions rather than patches. Most of the app rescues we take on failed exactly here.
Test on real devices
We run on physical phones across screen sizes and OS versions to catch what simulators miss.
Handle store submission
Builds, screenshots, metadata and the review replies, on your Apple and Google accounts rather than ours. Rejections happen, usually over permissions copy or a login the reviewer cannot get past, and we handle the resubmission.
What you get
Deliverables
- Published iOS and Android apps
- Backend API with authentication and sync
- Push notification infrastructure
- Offline-capable local data handling
- App Store and Play Store listings and assets
- Crash reporting and analytics integration
Outcome
What changes for you
- Your app is live on both stores, not stuck in review limbo.
- The app still works on a train, and the writes it queued land when the signal comes back.
- One team wrote the app and the server, so a spike in installs has one person to call.
Fixed written scope, agreed before we build · you own the code, infrastructure and accounts from day one
Questions, answered
Native or cross-platform?
React Native when one codebase covers both stores and the app is mostly screens over an API, which is most first versions. Native when you need serious background work, heavy camera or maps, or a platform feature the bridge does not expose. We tell you which one you are on the scoping call, before you pay anything.
Do you handle the store submissions?
Yes — builds, screenshots, descriptions and the review back-and-forth for both stores. It all goes on your Apple and Google accounts, so the listing stays yours if you replace us.
What about updates after launch?
The release pipeline is set up so your own developer can ship an update without us. If you would rather we kept shipping, that is the growth retainer: $2,999 a month for 40 hours of development.