What event immediately preceded the onset of the misbehavior? Upgrade iOS to 9?
If so, it MAY be that these Apps (what Apps, specifically w/ versions) may not be compatible with iOS 9. It is a very good indicator that this may be the case if other apps are working fine.
https://support.apple.com/en-us/HT201398
Sep 10, 2015 - Follow these steps if you have an unresponsive app on your iPhone, iPad, or iPod touch.
Aug 13, 2015 - Learn how to update the iOS software on your iPhone, iPad, or iPod ... Go to Settings > iTunes & App Store and turn Use Cellular Data on or off.