How do you make it so you don't have to use your apple password when updating a app?

The only way to not enter your Apple ID password when you update apps is to update to the latest version of the Apple operating system iOS 6. If your device is not capable of supporting iOS 6, you will need to continue entering your password whenever you download apps or get app updates within 15 minutes or more of each other, or if any of your payments information has changed. You may also need to enter your password if the iTunes Store Terms and Conditions have changed.