You app users get an option with QR code scanner on their bottom bar when you have subscribed to Zappter QR Code Scanner plugin and customized the bottom bar to display it. Check how and what it needs to customize your app bottom bar.
Either your user can use your Zappter QR Code scanner or any other on the market to scan.
1. Scan the QR Code.
2. The file that you uploaded will be available for users based on their device languages when they scan the QR Code. If you haven't uploaded a file in a user's device language, the user will be provided with the 'default language' file.