Here's how you can force close an App

  1. You find yourself stuck in an App because it has froze or locked up.
  2. Double click the home button.
  3. All your open Apps will show in a slide menu.
  4. Slide left or right to find the App that is froze or locked up.
  5. Swipe your finger from the middle of the App to the top and fling it off the screen.
  6. Click the home button once to go back to your home screen
  7. You will then be able to open the App again.