Just a heads up regarding the latest version of the app. It doesn’t provide cross device syncing yet, but it allows you to sign in to your Google Drive account and have all your data automatically backed up to make sure they are safe at all time. It also makes restoring the data on a new device really easy.
You can go into Settings/Backup to enable this and sign-in
An error occurred while saving the commentVíctor José Pérez Ruiz commented
The app is awesome, don't get me wrong, and the best I found by years until now, but the cross-device synchronization is a big deal since long time.
While you're working on it, could maybe be implemented a daily check and restoration from the already existing daily backups on GDrive? It should be just automate the restoration process but it'll be a nice workaround for a lot of us meanwhile. Also a nice touch if we can choose do it only by wifi.