Flickr - image and video hosting website
KeepSafe - Keep your entire photo library safely stored in an encrypted private cloud.
Imgur - Imgur is a free and simple image hosting service with image editing feature. Signup is optional.
AppLock (FOSS) - A privacy App lock FOSS application.
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