The automatic sign-in option for MobiSystems accounts allows you to use File Commander, OfficeSuite, and MobiDrive apps simultaneously without the need to sign in to each one.
If you are installing OfficeSuite for the first time, but you are signed in to one of the other MobiSystems apps on your device, logging in to OfficeSuite will be automatic.
If you sign in with a different account in one of the apps, the same account will be automatically used for the other apps on your device.