If you are a subscriber to Babeland Photo Pro, you can set a password to exit your event. This is especially helpful if your photo booth will be unattended, or left as a permanent installation. If your guests tap the hidden "exit" button, a password will ensure the event cannot be ended without your intervention.
To set a password for exiting your event, open your Babeland Photo Pro app, then double-tap your event (or tap the "edit" icon) to bring up the event's settings. Navigate to the "Preferences" section, then the "Management" tab, and flip the switch to password protect your event. You can enter any password you would like; for your protection, the password will not be shown.
If you forget your password, you can exit an event by force-quitting the Babeland Photo Pro app.