Invoice Maker – Cross‑Platform Flutter Invoicing App

Build professional invoices in minutes. Invoice Maker is a modern, offline-first Flutter app that runs on Android, iOS, Web, Windows, macOS, and Linux. It stores data locally with SQLite (via Drift), supports English and French, also other languages, and generates beautiful PDFs you can share with clients.DEMO APP
Key features
Clients: Add, edit, delete; store contact, address, tax ID, notes
Products/Services: Manage catalog with price, SKU, unit, category
Invoices:

Create, edit, duplicate, delete
Add multiple items with quantity and unit price
Automatic totals: subtotal, tax, discount, shipping, grand total
Meta: invoice number, issue/due dates, due days, notes, terms, status
Payments: amount paid, paid date, method, notes

PDF generation:

In-app preview
Professional layout
Share/open via native apps

Dashboard & lists:

Recent invoices at a glance
Filterable lists for clients, products, and invoices

Settings:

Language: English/French (instant UI update and persists)
Default currency code (e.g., USD)
Number locale (e.g., en_US)
Date format pattern (e.g., MMM dd, yyyy)