Company Guillermo Licea created these great apps:
SimpleListMaker, SimpleListMakerLite, PSR, iPseudoCode, PSR Lite, PSR - for iPhone, PSR for iPhone Lite, iPseudoCode - for phone, CM - MC, CM - MC - para Phone, Fracciones de Guiller, Aritmetica, Fracciones para Phone, Letter Sweeper, Letter Sweeper - for iPad, Numbers Sweeper, Numbers Sweeper - for iPad, Chalk Numbers, iFlowDiagram, iScorePoints, and others..
