F-Stop Media Gallery - Image and video organizer.
UserGuiding - User onboarding made easy, for less. Create product walkthroughs in a couple of clicks, without breaking the bank.
A Photo Manager - Manage local photos on Android: gallery, geotag with photomap, tags, find, sort, view, copy...
Usetiful - Fight user churn with great user onboarding. Interactive product tours and smart tips significantly improve your user retention.
LeafPic - LeafPic is a fluid, material-designed alternative gallery.
Userlane - Digital adoption platform with interactive guidance for software applications allowing anyone to understand and master any software from the get-go.