App Lock and Gallery Vault - Wish you could simply lock all your private apps on your smartphone with just a click?
F-Stop Media Gallery - Image and video organizer.
Photok - A safe place for your photos. It stores your photos encrypted on your device and hides them from others.
Camera Roll - Simple Gallery App for Android, with lovely Material Design.
KeepSafe - Keep your entire photo library safely stored in an encrypted private cloud.
digiKam - Professional Photo Management with the Power of Open Source