Create a local backup
Use the backup option in settings to create a file you can store in a location you control. Keep a recent copy before changing devices or making a major update.
Optional sign-in, automatic Pro sync
Local use does not require an account, so sign-in is optional. With active ClearDo Pro, sync starts automatically after sign-in.
A local backup and automatic sync serve different purposes. Keep a backup even while your signed-in devices sync.