Several Apple supplied apps not working properly

I wasn't sure what section to post this under. I am having issues with several Apple apps not working. The App Store under Updates or Purchased doesn't show any icon to the right of the app icon to download, update, etc. Under Purchased, it shows the cloud icon next to everything whether it is installed or not. iBooks open to just a white screen and then shuts down. Podcasts only opens to the first screen and freezes. I have to reset my phone to make them work for a while only for this to happen again. Any suggestions? I have wiped my phone and reloaded it as well.