The application consists of selecting the image or video that you want to display in lock mode and you will immediately see in lock mode in full screen where it can not be disabled with the physical buttons and so you can show your friends without the fear that the other photos And images and videos.
The only way to disable the display in lock mode is to block the device normally and add your lock key or make the security pattern and you can select another file.
Only you have the control and also the images adapt to the device and to the orientation of the device you can see it in horizontal and vertical mode;
You can zoom in on the images.
The application is available for most devices and OS, the app is available in several languages.