Tap the Gear icon in the upper left to access the settings screen.

To link to Facebook and save your designs, or to play across multiple mobile devices, tap “Sign In” and follow the prompts.

To unlink from Facebook, tap “Sign Out” and follow the prompts. 

Note: signing out of Facebook means your progress is only saved to your individual device. If you switch or upgrade your mobile device, you will not be able to recover your progress.