SpyCalc looks and functions like a calculator until users enter a code, which opens a hidden folder.
Best Secret Folder operates much in the same way.
Hide It Pro appears to be an audio manager but it’s actually a secret vault.
Periscope allows users to live stream whatever is happening on the other end of their smartphone camera.
Omegle pairs users up with random chats with strangers.
Yik Yak is an anonymous social chat room that connects users by GPS coordinates.