Hide it Pro is an app that lets you hide your photos, music, videos, and even other apps on your Android smartphone or tablet. And it lets you do so in a way that's as clever as it is effective. Basically, the app is installed with the name Audio Manager and when you open it, you see this: a sound management app. That said, if you hold your finger down over the app's logo for a second, then the real Hide it Pro app opens.

If this security measure isn't enough for you, once you open Hide it Pro, you also have to enter a password. Only then can you use all the app's features, which let you protect your photos, videos, music and even other apps. However, to hide apps, you need to have root permissions. The rest of the features can be used even if your device isn't rooted.