What a invoicing app needs
- Client directory
- Invoices with line items and tax
- Branded PDF generation + share
- Paid/unpaid/overdue tracking
- Recurring invoices
The screens
| Screen | What it does |
|---|---|
| Invoices | By status: draft, sent, paid, overdue |
| New Invoice | Client, line items, tax, due date |
| Invoice Preview | Branded PDF, send/share |
| Clients | Directory with history |
| Settings | Logo, tax rates, numbering, billing |
The data model
Client: name, email, addressInvoice: clientId, number, items[], tax, dueDate, statusLineItem: description, qty, rate
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
Freemium by invoice volume ($8–15/mo). Users churn less once their numbering + client history lives in the app.
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 invoicing app on your phone today, full code export, no credit card.