App to issue invoices

Job ID: 32170521

Budget: $5,000 – $7,000 USD

We need an app to issue invoices with the following characteristics:

1. App needs on a single base code to work on iOS, Android, Windows, MacOS, Linus (we propose react native, but developer can propose other programming languages also)
2. App needs to send invoices issued to our API (already exists) with Json format
3. App has total 5 screens (2 working screens, 1 for easy access and 2 for settings)
4. App needs to work with barcode scanner
5. App needs to work natively on each system without any online dependencies (frontend and backend on the system)

We provide:
Wireframe designing of the app, technical specifications