Open AScoin APP, enter 【Mine】-【Settings】- 【APP Lock】, and then you can set Face ID or Touch ID. After setting the feature, the page of Face ID/Touch ID recognition will be shown when you re-enter the APP.
Enter 【Mine】-【Wallets】and select one wallet to click it. Make the feature [Face ID] on and your transactions can be done by Face ID without typing the password. If your phone only supports Touch ID, then the [Touch ID] will be on.