When you first install Vaulty Free you have to set a password. Of course, you can skip this step, but the app wouldn't be as useful. Then, you have to choose which pictures you "send to the vault". Once you've selected the media to hide, their thumbnails will turn to black. When your parents -or anyone- try to find them, they won't be able to.
So far, the idea. Uninstalling the app while are there pictures hidden will cause the lost, or at least the lock, of those pictures. Since there's a Vaulty Free icon in your app list, a smart spy would easily put two and two together. Reinstalling the app seems to reset the password, which seems not very useful. When you set a new password, the 'secret vault', with all its content, is shown.
There are a lot of hiding apps out there. We don't know how the rest work, but we'll continue to seek out new and wonderful apps.
by Peter , Appszoom
May 31, 2011