Net worth, accounts and spending in one calm view, with bank linking and biometric sign-in.
- Client
- Consumer fintech startup
- Platforms
- iOS · Android
- Timeline
- 16 weeks
- Year
- 2025
Most finance apps feel anxious — red numbers, alerts and dense charts. The founders wanted the opposite: an app people open because it makes them feel in control, while still handling bank-grade security and a lot of edge cases.
- 01
Designed a dark, quiet interface where the most important number is always the first thing you see.
- 02
Built in React Native and TypeScript so logic could be shared with the team’s existing web product.
- 03
Implemented secure account linking, biometric sign-in and encrypted local storage.
- 04
Wrote a typed API layer and extensive tests around money calculations and currency handling.
Accounts screen with balances and a monochrome chart
Onboarding, dashboard and Face ID sign-in screens
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A polished app on both stores built from one codebase, with the shared TypeScript layer letting the web and mobile teams ship features together.
Scope
Product design, React Native app, API integration, Biometric auth, Security review
Stack
React Native, TypeScript, Expo, Node.js, PostgreSQL
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