Company Thomas Bretl created these great apps:
FactorMan, Arithmetic Quilts, SquArray, GeoFit, Celestial Dances, Arithmetic Triads, Mystery Motion, Algernon, ArithmeDarts, Reckonings 2, Calc Visualizer, ProbSim, Stepwising, TranMan, MathPats, Recursivity, The Triangle Center, Statisticality, Circular Art, and others..
