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Vault — personal finance, made calm
A personal finance dashboard that turns messy transactions into a clear, honest picture of your money.
- Role
- Designer & Developer
- Timeline
- 3 months
- Tools
- Next.js, D3, Figma
- Outcome
- 4.8★ average
The problem
Existing tools either drowned people in charts or oversimplified to the point of being useless. Neither built real understanding.
Approach
Data model
Designed a categorisation engine that explains itself, so numbers are always traceable.
Progressive depth
Led with a single clear summary, with detail available exactly when wanted.
Build
Shipped the full app in Next.js with custom D3 visualisations tuned for legibility.
Results
- 4.8★ average rating across stores
- Median session reduced to 90 seconds — by design
- Adopted by 3 personal-finance communities