Wont work with iOS10
This app has worked well for years but as of iOS10 it no longer works correctly. The ability to add pictures to the app is broken (you can still add pictures but you have to be VERY fast with your fingers because the add button appears and disappears in less than a second. Its obvious the developers no longer care about the app and are not maintaining it. Find a different app, Im sure there are plenty of others at this point that work better and probably have more features.
hlevolve2 about
Picture Safe - Hidden Photos, v2.9.2