Fintech
Subscription Leak Finder
Finds forgotten recurring charges in a bank statement
Beginner12h1–2
Next.jsCSV parserCharts
16/20Personal Finance Insights
Shows spending patterns and simple saving suggestions.
Intermediate24h1–3 people16/20 fit
Build Personal Finance Insights for people managing their own money in ~24h with 1–3 people. Stack: React + Charts + LLM.
Why it wins: Practical and visually strong for demos.
Build flow
01 · Problem
People don’t know where their money actually goes each month.
02 · Solution
Upload transactions. Get category breakdown and practical saving tips.
03 · Build
- 1CSV parser
- 2Categorize transactions
- 3Charts dashboard
- 4LLM saving tips
04 · Demo
Upload sample transactions → show pie chart + one clear suggestion.
MVP checklist
- CSV upload
- Category breakdown
- Recurring spend finder
- Saving tips
Tech stack
| Tech | Role | |
|---|---|---|
| React | Frontend UI | Web |
| Charts | Data visualisation | UI |
| LLM | Language model | AI |
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