Company Oddrobo Software AB created these great apps:
Math Formulas - Ref. Guide, King of Math, King of Math: Full Game, King of Math Jr: Full Game, King of Math Jr, Doctor Lowhigh, King of Math 2, King of Math 2: Full Game, Equilibrians, Equilibrians (Lite), King of Math Jr 2, Veckoschema med bildstöd, King of Math: Telling Time, King of Math Jr 2: Full Game, and others..
