To restore from an internal backup, tap Options* in the bottom toolbar. Then, go to Backup > Restore from Backup. Find a backup from before you noticed the changes. To restore it, tap Restore on the right side of its row. If the backup is from a user with a different name than the one you are currently in, Proloquo2Go will ask which user you want to restore it to.
If Restore from Backup is grayed out, it has been restricted. To enable it, go back to the main Options. Tap Restrictions. Scroll down to and toggle the Restore from Backup setting to ON.
Internal backups are only stored inside Proloquo2Go. If you accidentally delete Proloquo2Go or the device is damaged, you will also lose these backups. Additionally, Proloquo2Go only keeps the eight most recent backups from each user. To be safe, we recommend regularly saving backups outside the app. You can have Proloquo2Go back up to iCloud, Dropbox, or Google Drive. Or, you can save backups to your computer using iTunes File Sharing or Connect to Computer. For instructions, please see the Protect, Recover, and Share Vocabulary Support section.
*On iPhone and iPod touch, you will find the Options button in the Tools popup at the far left of the bottom toolbar