APKPure Appを使用する
App Lock (Keypad)の旧いバージョンをダウンロードすることが可能
App Lock for Keypad
App lock is security tool which helps you to protect your phone from annoying people by locking your applications from public access, only you will be able to unlock them again. With app lock you can lock your applications using either PIN or lock pattern.
Features:
*Able to use pictures from smartphone of user for lock screen.
*Support pattern unlock and password unlock.
*Lock 3rd party apps and system apps.
*Clean interface and easy to use.