[Zubersoft]

As mentioned above, the companion app only runs on Windows devices. To transfer your library, the simplest way to handle this is to create a library backup file on your old tablet, transfer that to your new tablet and then restore your library using it. To do this, open MobileSheets on your old tablet, tap the three dots at the top right of the library screen and then tap Settings->Backup and Restore->Backup Library. This will generate a .msb file in the folder you select which can be on the device or in the cloud. If you selected a local folder, transfer the file from that folder to the other tablet. Open MobileSheets on the new tablet, then go to Settings->Backup and Restore->Restore Library from Backup. After the restore completes, you will have access to your entire library on that device. 

Mike