Can't download free apps
13862
Can I download a free app from the App Store without a credit card?
89054
Verification required when attempting to purchase free app
91417
How to use an existing Apple ID to download free apps from App Store without using Credit Card?
4448
How do I install applications in Ubuntu?
78502
What are the risks if you install an app that's not from the App Store?
339
How to resolve "Failed to download repository information"?
32561
"Insufficient storage" when trying to install new app
152739
Application downloading error (919)
112623
This version of the application is not configured for billing through Google Play
21617
Why can't I press the Install button when installing applications from unknown sources?
85033
Why is Play Store showing "Can't install app...Error Code: 910"?
76260
Where does Google Play Store put downloaded apps?
98807
How can I download a distribution?
38527
How to disable third-party apps without uninstall?
73640
App  isn't working correctly. How can I fix it?
40755
How to uninstall a program through the App Store?
41220
Why the software center doesn't allow multiple downloads?