Company MPS Europa AG created these great apps:
Cybertest for iPhone, Cybertest for iPad, LEARNow, Compendio LEARNow, AKAD LEARNow, QuizBiz, Zurich QuizWiz, MDT QuizBiz, Learning Nuggets, Ericsson LEARNow, EHB, TKB LEARNow, PikiPiki, QuizBiz, Zurich QuizBiz, and others..