About the appstore
119062
How can I buy apps in the App Store without a credit card?
50359
iPhone App Minus App Store?
139140
Does iTunes Home Sharing transfer in-app purchases?
24550
Change Appstore user from MacBook?
52142
How to buy an app for a friend?
99681
What filesystems does iOS use?
3803
Deleting iTunes App Store purchases from my account
53345
Discovering the iOS App Purchase Date
67748
Same app after an update in iTunes
133772
Are there any gotchas with using two Apple IDs for one user in the App Store?
149125
Billing Information Required for App Updates
106195
Can't install any app, App Store asks for credit card
74962
Clearing purchases from iOS in-app purchase sandbox for a test user
68652
iPhone app launch time, lifecycle question
106032
Can I launch one app from other app on iPhone
30962
How can I install the Google Apps Package (Play Store, ...) on my Android device?
45820
Unable to change payment information to NONE in iOS Appstore