Aha! You are wise, Grasshopper, to look for a way to back up your work. You can use the Dropbox service for that purpose, but not with the Dropbox sync feature. The sync feature is intended to propagate changes rapidly to all connected devices. If one of those changes is a Mistake, well, the mistake is rapidly propagated… and it’s almost impossible (for technical reasons I won’t bore you with) to revert a Scrivener project to an earlier Dropbox version (even though Dropbox does save old versions. It’s complicated. If you ever have to do it, email Scrivener tech support for help.)
So.What to do? I suggest you create a folder in your iCloud drive, by using the Files app. Name it perhaps Scrivener Backups. (iCloud is just because if the Dropbox service itself fails, your backup is safely in a different cloud service.)
Every day at the end of your work:
- Once again, tap the “Edit” button at the top right of the Projects list.
- Select your project by tapping the circle that’s next to it on the left.
- Now tap the “share” icon, second from the left on the bottom of the project list panel. You should see a box that says “Creating archive…” with a progress bar.
- Wait for it to finish, then choose “Save to Files” in the save box that appears after.
- Navigate to the Scrivener Backups folder on iCloud Drive you made earlier.
- Tap “Save” in the upper right corner.
Do the above for every project you worked on that day. If you’re not sure, back 'em all up.
If you need to restore from one of your backups,
- Open the Files app, and navigate to your Scrivener Backups folder. You’ll see your backups have project name, date and time in the file name and they all end in “.zip”.
- Tap on a backup. A new icon with your project name and ending in “.Scriv” will appear in the list.
- Tap the “.scriv” icon. Your backup will open in Scrivener.