BinancePay uses Binance DEX to send BEP-2 token transactions to participating retailers using the QR code scanning. It's an iOS app that integrates with MySQL back-end to fetch restaurant and menu data, once a user picks an item, the app allows near instant token payments into the retailer's wallet. The transaction on testnet are sub-second.
Just download or clone the app, open in XCode 10.2.1 and Swift 5 and above.
The app was built as a part of ETHNewYork 2019 hackathon.