What small program does Xi An use to take the subway?

The procedures for taking the subway around here are as follows:

1.Xi An Metro official APP: Click "Ride", then click "Go", and follow the system prompts to complete all the operation steps to scan the code and enter the station.

2. Search for "Xi 'an Metro" in the WeChat applet, find the Xi 'an Metro applet, click "Brush the code to ride" after entering, and then complete all the operation steps according to the system prompt to scan the code to enter the station.

3. Search for "Xi 'an Subway" in Alipay, complete the operation according to the prompts, and then scan the code to enter the station.

4. Use UnionPay China UnionPay Express Scan Code to ride.