A free app for Android, by Appire.
Intruder Selfie Alert is a device security application that is used to protect your Android smartphone from intruders and other unwanted users. The application is very easy to use and works in a very simple way. The user can choose the time interval for which the application checks if the device is still locked or unlocked.
How does it work?
This application works by taking a picture of the person who is trying to unlock your device. The user can choose to show the picture to the person or not. If the person tries to unlock the device again, then the application will take another picture and show it to you. The user can save the pictures and share them with friends or family members. The user can also choose to hide the picture from the gallery.