Warning! Before a Nebo upgrade, please sync all your notebooks. If you automatically update your apps, regularly sync your notebooks to avoid losing any data.

Manual sync
Tap the sync icon to synchronize your notebooks. Unfortunately, an automatic synchronization is not possible at the moment.
However, if a notebook is modified with another device, the sync icon will automatically switch to , letting you know you have to tap it to download the latest version.

Version and conflict management
In case of conflict between notebook versions, the most recent file is kept. If you use several devices, the most recent version of the notebook is the one that will be synchronized.

Dropbox allows you to view your notebooks, as *.nebo files. But note that these files cannot be opened or modified outside of Nebo.

If a notebook is deleted locally, it will also be deleted in the cloud at next sync, but can be restored using Dropbox history.
How to restore deleted files: https://www.dropbox.com/help/security/recover-deleted-files-folders.
How to restore the previous version of your notebook in Dropbox: https://www.dropbox.com/help/security/recover-older-versions#web

Notebooks and folders can be renamed or moved. Such changes are updated in the cloud at next sync.

Enabling or disabling
In the settings menu, choose whether you want the sync feature to be Enabled or Disabled.

Open the main menu, choose Cloud, then Disconnect Dropbox.