This app helps customers scan the items that are purchased in a retail store and helps retailers to scan all items at once.
The default mode for the scanner is add. So as you scan products are added. Options for scanning single item as well as continuous scan is available.
removing the item from cart is easy. Switch to remove and start Scanning. Remove one item or multiple items. After the items are removed it will automatically switch mode to Add so you can keep adding other products to buy on the cart.
The QR code on the screen will continuously update as you add or remove. Just present the QR code at checkout