NQ Mobile's Vault is the app that every celebrity who had their "personal" photos stolen from their phone wishes they had. The app password protects users' most personal photos, videos, texts and contacts from any and all prying eyes behind and security wall. Any data saved within the app the app  And to show just how serious Vault is about protecting your information, the app doesn't provide you with any password hints if you can't remember your password. That's good for protecting your data, but bad if you forgot to write your password down, because there's no other way to access your information.

We tried out Vault during a brief demo and found it's interface to be very straightforward. When you log into the app, you are provided with a menu screen that gives you access to your hidden photos, videos, texts and contacts. Any files that are stored in the app are invisible elsewhere on the phone. One of our favorite features of Vault was its ability to hide text messages. What make the feature so good is that it suppresses alerts for messages that are supposed to be hidden. So the only way to check a message that you have hidden using Vault is to enter the app itself.

Another interesting feature included with Vault is Stealth Mode, which allows users to completely hide Vault's presence on their phone. Once activated we weren't able to find any app shortcuts on our demo phone's homescreen or in the apps menu. To access the app again, we had to open the phone's dialer and enter ## followed by Vault's password and begin making a call. But instead of dialing a number, the code brings you immediately to Vault's homescreen. That feature alone should make even the most privacy conscious users happy.

NQ Mobile is available as a beta app through the Google Pay store, however, the company says a final version of the app is expected to hit the market in the coming weeks.