This is the iOS App that decoding EMV®1 and JPQR QR Code2. You can check the content embed in a QR Code.
This project was introduced in my iOSDC2019 presentaion. Please also see that. https://speakerdeck.com/kenmaz/how-to-develop-a-mobile-payment-app
1: EMV® is a registered trademark in the U.S. and other countries and an unregistered trademark elsewhere. The EMV trademark is owned by EMVCo, LLC.
2: "QR Code" is a registered trademark of DENSO WAVE