itch.io - An online game marketplace and community.
Octopus by Joy - 1st icon-based watch that teaches kids good habits and time
GOG.com - DRM-free game store, selling both new and old titles. No clients required.
Kids in Touch - A safe, fun, messaging app for kids monitored by parents
GnuPlot - Gnuplot is a portable command-line driven interactive data and function plotting utility.
KidHab - Develop useful habits in your kid together