LuaPOS - Point of sale

Sales application on mobile phones with main features:
- Print QR code, Barcode
- Print invoices via Bluetooth printer
- Add staff
- Staff update
- Deleting staff
- Employee decentralization
- In-app purchases
- Update store information
- Sales by Camera
- Sales with barcode scanners
- Sales by searching
- Add and delete products
- Invoice list
- Statistical