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Budget Control — building a subscription app
We built a family budgeting app, from user flows and interface design to data sync, paid subscriptions, and App Store submission. Three languages, 16 currencies, and shared access for the whole family.
- Year
- 2026
- Discipline
- Mobile apps
- Estimated timeline for a similar project
- 12–16 weeks
- Stack
- Expo, React Native, TypeScript, Supabase, PostgreSQL, RevenueCat, App Store Server API
- Type
- Our own product
The challenge
Turn an idea for tracking shared expenses into a complete mobile product. Make everyday budgeting simple and create a subscription that works for the whole family.
What we did
- Designed everyday budgeting flows — expenses, spending limits, savings, and transfers between accounts — all in one interface.
- Built shared access — family members see the same budget on their phones. Updates sync across devices, and expenses can be added offline.
- Implemented paid subscriptions — one person pays for access for the whole family. We integrated Apple in-app purchases and subscription status checks.
- Prepared the app for multiple markets — we added three languages and 16 currencies. Users can manage their budget without connecting a bank account.
The result
We built the family budgeting app and submitted it to the App Store for review. One team delivered the product, website, and promotional video for launch.
Shared budget
Adding an expense
Subscription
- 3
- interface languages
- 16
- supported currencies
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