Irvue - (previously Unsplash Wallpaper) Gorgeous wallpapers on your Mac.
Planet Explorer - Interactive global satellite images
Wallpaper Wizard - Wow-worthy backgrounds for Mac
himawari.js - Real-time images of Earth from the Himawari-8 satellite
Wallcat - Enjoy a new, beautiful wallpaper, every day.
Spire - The first activity, breath & state of mind tracker