Hellosaurus - Interactive mobile shows kids can play, not just watch
Qalculate! - Qalculate! is a multiplatform multi-purpose desktop calculator.
fpt.guide - The ultimate guide to first-principles thinking
NumWorks - The graphing calculator that makes learning math easier.
The Wiggles + YOU - The Wiggles’s first interactive series, only on Hellosaurus
SpeQ Mathematics - SpeQ is a small, extensive mathematics program with a simple, intuitive interface.