Engineering · Mobile Apps
Mobile app development for iOS and Android
React Native and Expo apps that compile clean, ship to both stores, and feel native because we treat platform UX like first-class engineering.
Timeline
8–16 weeks
Engagement
Senior squad · Fixed scope
Why teams pick this engagement
What you get out of it
- One TypeScript codebase, two App Store and Play Store binaries
- Native-feeling 60fps animations and gesture handling with Reanimated
- Offline-first data sync with conflict resolution out of the box
- Crash and release health dashboards from your first TestFlight build
Overview
What this service is
We build mobile apps the way mobile-first companies build them: typed, modular, instrumented, and reviewed by engineers who have shipped to the App Store many times.
Deliverables
iOS + Android app
One TypeScript codebase, two store-ready binaries.
Offline-first sync
Conflict resolution, optimistic UI, queue-and-replay.
Push + deep links
Expo notifications, universal links, attribution.
Crash + analytics
Sentry, PostHog, full release health dashboards.
App store submission
We handle review feedback so you don't have to.
How it runs
Four phases. Production from day one.
Prototype
Working flows in a week, on real devices.
Build
Sprint by sprint, with TestFlight builds every release.
Polish
Animations, edge cases, accessibility, perf budgets.
Ship
Submit, iterate, monitor — ready for v1.1 the day after.
Proof
A recent engagement
What this service looks like in production.
Consumer FinTech App
Shipped a native-feeling mobile app on both stores in 14 weeks
React Native + Expo. Offline-first. 4.8★ at launch.
4.8★
Average store rating at launch
+38%
Lift in mobile DAU vs. webview
4.8★
Average store rating at launch
+38%
Lift in mobile DAU vs. webview
14 wk
iOS + Android, in stores
<1%
Crash-free sessions
“It feels like an app a serious mobile-first company would build. Our reviews tell us our users agree.”Read the full case study
FAQ
Mobile Apps — common questions
- For most product apps, React Native and Expo deliver native-feeling UX with one codebase, one team, and one release cadence — at a fraction of the cost of two native teams. We pick fully native only when the product depends on platform-specific APIs that React Native can't expose well.
- We design data layers that assume the network is hostile. MMKV for fast local storage, queue-and-replay for write operations, and explicit conflict resolution rules per entity. Users can use the app on an airplane and never notice.
- Yes. We handle the metadata, screenshots, privacy declarations, and the back-and-forth with App Review. You'll usually have a green review on the first or second submission, not the fifth.
- Mobile app infrastructure is cheap if you set it up right. Expected monthly cost for a typical SaaS-grade app: ~$50–$200 for crash and analytics, ~$0–$100 for push, and EAS Build credits when you ship a release. Backend infra is separate.
Ready to ship mobile apps?
Tell us a bit about the project. We'll come back with scope, timeline, and a fixed price within one business day.