We always suggest our users to set up an authentication or password so that they can make their purchases in a more secure way.
You can set up this password by following these steps:
- Open the "Settings" application.
- Tap on your name.
- Go to "Content & Purchases".
- In the drop-down menu that will be displayed, select "Password settings" *.
- Then set your desired settings.
*If you don't see "Password Settings" is because Face ID or Touch ID is turned on for the Store. To fix this, go to "Settings" > "Face ID & Passcode" or "Touch ID & Passcode" and turn it off.