[Zubersoft]

At the moment, MobileSheetsPro does not keep a copy of the database both under the default storage location as well as the current storage location (assuming they are different). If users would like me to copy the database over either when the application is first started or before it closes, I can do that. I don't want to frequently copy the file though, as I don't want additional I/O happening in the background (this can be slow with some SD cards, and it would lock the database while the copying is occurring). 

As a side note, you can always manually copy the database file to the SD card periodically to have a copy just in case.

Mike