Mobile app development for iOS and Android
We design and build mobile apps people keep on their home screen. Using React Native and Expo, one team ships native-quality apps to both stores — with offline support, payments, notifications and the device features your product needs.
What we deliver
Product & UX design
Flows and interfaces designed for thumbs and short attention spans, tested as prototypes first.
Cross-platform apps
React Native and Expo apps for iOS and Android from one TypeScript codebase.
Native capabilities
Camera, NFC, widgets, biometrics, health data and background tasks, with native modules where needed.
Backends & sync
Supabase, NestJS or serverless backends with offline-first sync and real-time updates.
Payments & subscriptions
In-app purchases, Stripe and RevenueCat, with paywalls you can experiment with.
Release & growth
App Store and Google Play submissions, over-the-air updates, analytics and crash reporting.
Typical use cases
- Consumer apps with subscriptions
- Health, fitness and wellbeing apps
- Field and sales apps for enterprise teams
- Companion apps for hardware and IoT
- Networking and community apps
Technology we use
React Native
Expo
TypeScript
Supabase
Stripe
RevenueCat
How we work
- 01
Discover
We learn the business, the users and the constraints, and agree what success looks like.
- 02
Prove
We test the riskiest assumption first — a prototype or AI proof of concept — before scaling the team.
- 03
Build
Short iterations, working software every two weeks and demos you can click through.
- 04
Run
Launch, monitoring and continued development — or a clean handover to your team.
Related work
Cardly
Mobile app · Networking
A digital business card app — share your card by link or QR code, scan other cards back, and keep every contact with notes, tags and follow-up reminders.
Ealthiness
Health & fitness app
A mobile fitness companion — guided exercises, live run tracking, mood graphs, and daily activity insights that keep users moving and coaches connected.
Sumus
AI · ESG · Sustainability
An AI product-discovery engine for fashion — scan a garment to reveal its ESG parameters, then compare sustainability across brands. We built the AI tool.
Frequently asked questions
Native or cross-platform?
For most products React Native with Expo gives native performance and one codebase. We recommend fully native Swift or Kotlin when an app depends heavily on platform-specific features.
How long does it take to build a mobile app?
A focused first version typically takes three to five months, including design, development, testing and store review.
Do you handle App Store and Google Play submission?
Yes — accounts, builds, review notes, privacy labels and release management.
Can you take over an existing app?
Yes. We start with a code and architecture review, then stabilise and continue development.
Further reading
Building Great React Native Apps with Expo in 2026
React Native with Expo is a sensible default for most mobile products in 2026. Here is how we structure, optimise and ship apps that feel native on iOS and Android.
5 min read
Mobile App Engineering: What It Is and Why It Matters
Anyone can assemble screens. Mobile app engineering is the discipline that keeps an app fast, secure and maintainable as it grows from launch to its third year.
5 min read
Building Cardly: React Native, Expo and Supabase
Cardly replaces the paper business card with one you never reprint. Here is how we built the mobile app, the scanner, the widgets and the web side.
6 min read
Let's talk about your project
Send us a short description and we will come back with questions, a rough plan and a team.
Email us