Planet Explorer - Interactive global satellite images
Variety Wallpaper Changer - Variety is a wallpaper changer for Ubuntu which is featureful, yet slim and very easy to use.
SpyMeSat - Task a satellite to take your picture, in real time
Splashy - Breathtaking, auto changing wallpaper app for macOS, Windows, Linux, iOS & Android
Spire - The first activity, breath & state of mind tracker
Wallcat - Enjoy a new, beautiful wallpaper, every day.