Use APKPure App
Get Smart Screen Lock Protector old version APK for Android
This application help protect your phone from unknown person or thieves.
This application help protect your phone from unknown person or thieves. Actually this application does not let thieves to shutdown your phone, if thief tries to shutdown your phone it will start ringing if you keep alarm function active of this application.
Note: This App works on devices having Android version up-to Oreo(8.1)