[Zubersoft]

On Android, if you drag down from the top of the screen, there should be an option to control whether the tablet auto-rotates. You may just need to enable that if it's currently disabled. MobileSheets just follows the tablet rotation by default. Having said that, if you go to Settings->Display Settings in MobileSheets, you will see an option at the bottom for the Device Orientation Lock. Make sure that's set to None.

Mike