App lock is a software which is used to hide images and videos so that no can see and access them. This application is quite complicated and tough to use . For beginners it might be tough for them to use this application. The application is easily available at play store and app store for free . The astonishing feature of this application is it’s security, no one except the user can access the files and it support all passwords whether it be pattern, pass code, etc.But nowdays all the smartphones are embedded with the feature of app lock which makes this application of no use therefore I advice everyone to first check whether they have this feature on the phone and If not then go for it otherwise not.