Xi’an Metro 50% discount card can be purchased on the Xi’an Metro APP. The purchase process is as follows:

1. Download the Xi'an Metro APP.

2. Bind the bank card on the Xi’an Metro APP.

3. Click on the discount card option.

4. Find the 50% off bus pass.

5. Click to apply.

In addition, you can also download the UnionPay APP on your mobile phone, register and bind bank credit cards, etc., and then use the UnionPay card to take the subway and have the opportunity to enjoy a 50% discount.

The above are two ways to buy Xi'an Metro 50% discount card. You can choose to buy according to your personal habits and needs.