One codebase, two app stores, no compromise
We build cross-platform mobile apps with React Native and Expo that feel native, ship faster and cost less to maintain. We handle everything from design and backend through to App Store and Google Play release.
- iOS and Android launched together
- Lower build and maintenance cost than two native apps
- Smooth app store approval with no surprises
What we deliver
Cross-platform apps
React Native and Expo apps with native performance and a single codebase.
App design
Mobile-first UX, design systems and clickable prototypes before we write code.
Backend & sync
APIs, real-time data, offline-first sync and secure authentication.
In-app purchases
Subscriptions and payments via Apple, Google and Stripe.
AI on mobile
Camera-based AI, voice input, chat assistants and personalised feeds.
Store launch & updates
App Store and Play Store submission, over-the-air updates and crash monitoring.
- Companion app for an existing SaaS
- Marketplace or booking app
- Field service app with offline mode
- AI-powered consumer app
- React Native
- Expo
- TypeScript
- Supabase
- Firebase
- RevenueCat
- Sentry
We choose tools for your project, not the other way around. If something else fits better, we'll recommend it.
Mobile App Development: common questions
Why React Native instead of native?
For most products it means one team, one codebase and faster releases on both platforms. If your app truly needs native code for something specific, we'll say so.
Do you handle app store submission?
Yes, including store listings, screenshots, privacy forms and responding to review feedback.
Can the app work offline?
Yes. We design offline-first data sync for apps used in the field or with spotty connections.
Got an idea? Let's build it.
Tell us a little about what you need. There's no commitment and no hard sell, just a straight answer on how we'd approach it.
Personal reply within 24h
From the people who will actually build it.
NDA if you need one
Share your idea with confidence.
Fixed-price proposal
Clear scope, timeline and cost, usually within 3 business days.
Prefer email? hello@nanobuild.co