Goldie helps you easily visualize or calculate the golden ratio and many other proportions right on your screen.

Pixea is an image viewer for macOS with a nice minimal modern user interface. Pixea works great with JPEG, HEIC, PSD, RAW, WEBP, PNG, GIF, and many other formats. Provides basic image processing, including flip and rotate, shows a color histogram, EXIF, and other information.

myTracks is the swiss-army knife for organizing your GPS tracks. They can be loaded from a broad range of devices and organized in a library comfortably.