rooted then unrooted apps not working !!

[Tyz]

Rooted device then when upgrade to 5.1 arrived unrooted to update . updated ok so unrooted ! yes ..
never rerooted again but some apps "say will not work on rooted device" !!
what can I do to tell apps its not rooted ??

 

[DLK1]

Is it just a few app or many? You may want to try clearing data and cache for the apps in question. you may also want to try just rebooting the phone if you have not done so already.

 

[Tyz]

2 apps from the same British corporation Sky tv uninstalled cleared data still no joy ..bbc iplayer works I wouldn't mind but its not rooted now lol??