With GalleryVault, not only can you hide your multimedia content, you can even hide the app's icon so that no one knows it's installed. This way, no one will suspect a thing. From the app itself, of course, you can see all the images and videos on your device.
Another interesting security option in GalleryVault is the possibility to establish both a real and a fake PIN. This means when someone enters the fake PIN, they can open the app but they'll only see the photos you've selected.
GalleryVault is an excellent security app that lets you keep your most private photos safe and sound inside a virtual vault.