Chargebee Time Machine - Test and visualise future subscription workflows
GOG.com - DRM-free game store, selling both new and old titles. No clients required.
Xbox Game Pass - Subscription model for gaming on the Xbox One
itch.io - An online game marketplace and community.
PlayDate - World's first pet camera in a smart ball
GnuPlot - Gnuplot is a portable command-line driven interactive data and function plotting utility.