F-Stop Media Gallery - Image and video organizer.

KeepSafe - Keep your entire photo library safely stored in an encrypted private cloud.

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

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

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.

Hexlock - Security app locker keeps apps private with smart profiles for any situation