To change the type of password used for Applock , follow these steps or on your cell phone you can click here:
1- Tap on Tools tab and select Applock.
2- Enter your pattern.
3- Tap on “Settings” .
4- Select “Change your password“.
5- Select “USE A NUMERICAL PASSWORD” at the bottom of the screen.
6- Create a 4-digit numerical password.
7- Reenter the new password to confirm.
Now, select “FINISH” and you’re done!