My apps aren't working how do I fix them?

Restart it by going to the home screen, swiping four fingers up, holding your finger on the apps icon and pressing the Minus symbol. Swipe four fingers down. Relaunch the app from the icon on the home screen. If you're still having problems, check to see if there are updates for the app that fix instabilities or crashes. You can also delete the app and reload it from the app store for no extra charge.