China’s metropolises of Beijing and Tianjin have launched a service that enables metro passengers to use the same QR code to pay ticket fees in both cities.
It is common in China for subway passengers to use a QR code for payments, which is usually scanned at the ticket gates. However, the codes are often on different apps developed in different cities and cannot be used interchangeably.
The service, effective on February 6th, allows the QR code on the respective apps in Beijing and Tianjin to be accepted for payments in the subway system of both cities.
When Tianjin citizens use the "Tianjin Metro APP" to take Beijing Urban Rail Transit for the first time, they must first upgrade the "Tianjin Metro APP" to the latest version and open it, and click the ride button.