What a budget tracker app needs
- Quick expense entry with categories
- Monthly budgets per category
- Spending breakdown charts
- Recurring expenses
- CSV export
The screens
| Screen | What it does |
|---|---|
| This Month | Budget vs spent per category, big add button |
| Add Expense | Amount, category, note — 3 taps max |
| Insights | Charts by category and month |
| Budgets | Set monthly limits per category |
| Settings | Currency, export, subscription |
The data model
Expense: amount, categoryId, date, noteCategory: name, icon, monthlyBudgetRecurringExpense: template + schedule
The build prompt (copy this)
Paste this into ShipNative and it becomes a working React Native app with these screens, navigable in a live preview, in about two minutes:
Then iterate with small, screen-specific prompts (“make the primary button bigger”, “add an empty state”), preview on your own phone, and export the full Expo project whenever you want. The full method: how to build an app with AI.
How it makes money
One-time unlock ($10–15) fits here — usage is habitual but data is simple. Subscription if you add sync/couples mode.
Implementation and the revenue math for every model: how to make money from an app. When you’re ready to ship: App Store and Google Play publishing guides.
Build it now
The prompt above is free to run at shipnative.dev — working budget tracker app on your phone today, full code export, no credit card.