iOS + Android apps, submitted to your own store accounts.
One codebase to both stores, built end-to-end and submitted to your own App Store and Play Store accounts, so you own the apps and listings. Subscription billing, push, and OTA updates included. Serving clients in the US, UK, and Europe.
Everything the build needs, in scope
- iOS + Android from one codebase
- App Store and Play Store submission
- React Native and Expo builds
- In-app purchases and subscriptions
- Push notifications
- Authentication and onboarding
- Offline-first architecture
- OTA updates via Expo EAS
Boring, proven, and yours to keep
No exotic dependencies you'll struggle to hire for. Every choice below is one your next engineer will already know.
Shipped, in production
Destiny AI Journal
For ThomasAI-powered journaling and wellness app built for Nullzec. Voice journaling, mood tracking, AI narration, social features, and subscription billing — full-stack across iOS and Android.
- Expo
- React Native
- FastAPI
- Supabase
- +4
- Voice AI narration
- Mood tracking & heatmaps
- RevenueCat billing integrated
Tocablox World
For VikifugaTocablox World is a Tamagotchi-style virtual pet game where players care for a digital companion, decorate its home, unlock new items through progression, and enjoy a relaxing offline experience suitable for all ages.
- Flutter
- Flame Engine
- Dart
- Hive
- Tamagotchi-style virtual pet
- Fully offline · all-ages
- Decorate, unlock & progress
MindMaze Junior
For UlyanovichEducational game for children ages 3+. Four game modes, custom CustomPaint rendering, zero external packages. Targets Android, iOS, Web, Windows, Linux, macOS.
- Flutter
- CustomPaint
- Dart
Read the case studies
- Destiny AI JournalCAA voice journal that transcribes, summarises and narrates every entry — without making anyone wait for it.Read the case study
- Tocablox WorldBYA virtual pet that works with no account, no connection, and nothing trying to pull the player back.Read the case study
- MindMaze JuniorPolandFour game modes, six platforms, zero third-party dependencies.Read the case study
Answered before you ask
How much does a mobile app cost?
There is no rate card, because a rate card prices a guess. We agree the scope in writing first, then give one fixed quote against it — and that quote comes after you have seen a free prototype, so it is priced against something real. One number covers design, engineering, testing, and submission to your own App Store and Play Store accounts. What moves it is the number of screens, whether you need offline sync or native device features, and whether subscriptions and payments are in scope. Apple and Google charge their own developer-account fees directly to you; those are not ours to mark up.
Do you build for both iOS and Android?
Yes. We use React Native and Expo to build one codebase that ships to both platforms simultaneously.
Do you deploy and submit the app to the stores?
Yes, end-to-end. We submit to your own Apple Developer and Google Play accounts, so you own the apps and the listings. Includes App Store Connect setup, TestFlight builds, Google Play Console, and production releases.
Who owns the app, the code, and the store accounts?
You do, 100%, from day one. The app is built, deployed, and submitted on your own accounts, and you receive all code, repositories, and credentials. No lock-in.
Can you integrate subscriptions and in-app purchases?
Yes. We use RevenueCat for subscription management — works on both iOS and Android with minimal setup.
How long does it take to build an app?
Weeks rather than months. A focused first version — a handful of screens, authentication, and payments — is typically three to four weeks from kickoff to a build you can install and use, and up to about six once offline-first sync, native device features, or a large screen count are involved. Store review then adds its own time on top, which is on Apple and Google rather than on the build. The specific timeline is agreed in writing alongside the fixed quote, before any work starts.
Questions about NDAs, invoicing currency, working with clients in the US and UK, or what happens after handover? Those are answered on the full FAQ.