You can manage your password preferences for the iTunes Store, App Store, and iBooks Store from your iOS device.

You have two password options to choose from with paid and in-app purchases:

• Always: When you make a purchase, you'll always be asked to enter your password, even if you're logged in with your Apple ID.
• Sometimes: When you make a purchase, you'll be asked to enter your password only every 15 minutes.

If you don't want to enter your password when downloading free songs or apps, choose Never. You can't completely turn off password protection for paid items.

If you have Touch ID turned on for iTunes Store and App Store purchases on your iOS device, you don't need to set your password preferences. Also, if you turn on Touch ID after you set your preferences, Touch ID will override your preferences.