Can't download apps in my iphone 5 with IOS8?

When i try to tapping the 'install' it will just be replaced with the rotating circle and tada nothing happens. It says that all my apps are up to date but i'm not quite sure of that because i don't remember updating all my apps nor does it update automatically. They say that there's IOS 8.2 but when i check for software update it wouod be just another 'error can't blabla' and Help

Back up all your stuff on iTunes then restore the iPhone and then try to update to iOS 8.2, then install all your apps. Apparently iOS 8 has problems if not restored after upgrading from iOS 7. Or you can try updating through iTunes if it still doesn't work.