You should link UpWord to Dropbox.

> WHY?
- Sync across devices
- Cloud backup
- Recover deleted notes
- Free

> HOW?
Simple. Go to 'UpWord Settings > Backup & Sync'.

WHERE ARE MY UPWORD NOTES STORED IN DROPBOX?
UpWord notes are kept in this Dropbox folder:
'Dropbox/Apps/UpWord Notes'

CAN UPWORD ACCESS OTHER DROPBOX FOLDERS?
For security and simplicity, UpWord only accesses its own folder in Dropbox.

HOW DO I RECOVER DELETED FILES USING DROPBOX?
Learn to recover deleted files here:
https://www.dropbox.com/help/296/en

Learn to recover old file versions here:
https://www.dropbox.com/help/11/en

Remember that Dropbox gives you 30 days of recovery time for free.  If you want to retrieve older files, then sign up for their 'Packrat' feature here:
https://www.dropbox.com/help/113/en