Hello @alexd457,
Synchronizing via Dropbox, Google Drive, or from a desktop version of STRIP via local WiFi are the only synchronization options available for STRIP for Android. You can always create a free account with Dropbox or Google Drive just to perform the restore. If you do so, you would need to create a folder called Zetetic at the root on the cloud drive account you create, placing the strip.db file in it. Please remember, the entire contents of the strip.db file are fully encrypted.