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.

A Photo Manager - Manage local photos on Android: gallery, geotag with photomap, tags, find, sort, view, copy...

Google Photos - All your photos are backed up safely, organized and labeled automatically, so you can find them fast, and share them how you like.

Hide Secrets - Hide Secrets is an app that allows hiding everything they deem confidential on their smartphone.

Camera Roll - Simple Gallery App for Android, with lovely Material Design.