If you'e concerned about security on your app or just want to conceal your documents from other people using your device, you can lock them with a passcode on Noteshelf.
To lock a Notebook with a passcode-
- Open the Notebook you want to lock
- Tap on the Wrench menu
- Turn on the toggle beside "Password"
- In the dialogue box, set your password and hint and then tap on "Save"
We hope this helps. Happy Note-taking!