Latest questions about "app store"

I downloaded this IndianRadios app. from App Store on my iPhone. It worked very well, and I enjoyed it Unfortunately, it stopped working on May 30, 2016.

I purchased Epic Sudoku from the app store - I was unable to solve the first puzzle and want to get out of it to open a new puzzle. How do I do that?

I have been searching for a long time trying to find some information about this company that have some application available on the Google Store.

Where is the Asus app store? I have a laptop and need help. Where is the app store button?

I will download an app, and then I realize it uses too much space, so I delete it, but I want it back.

Every time I enter Play Store and choose any application, I agree with the downloading app terms, then a message appears: "This application can't be downloaded due to error 404".

Lost all data in iTunes and now, when I open the program it appears «iTunes 1» is empty. What shall I do?