Lor click the lock button located in the upper right corner of the app window.
Change lock password.
Sign outlink and you can sign in again with your account password. When you sign in again, your lock password will be set as your account password by default. You can change it again in the Settings.
Lock when app is closed.
Passcode Lock> enable
Require passcode when app launches. You will be asked to enter the passcode lock whenever opening UpNote app.