To log out of Facebook in Diamond Dash you need to disconnect from your Facebook account. To do this: 1. Open the Facebook app on your iPhone or iPad. 2. Tap the button with 3 stripes in the bottom right-hand corner. 3. Select “Account Settings” then “Apps and Websites”. 4. Select “Diamond Dash” then “Remove Application”. 5. Confirm the removal on the next page. 6. Wait a few moments, and the next time you open Diamond Dash you will be asked to log in again, however you can continue to play where you left off without doing so.