Company Research Studios Austria FG created these great apps:
KnowledgeFox, Click&Learn, Kaffeequiz, THINKSMART, FacultasApp, Forum Mentor, TakeCare EU, QUA Akademie, elearningApp - DUK, Rekindle Learning, Qudurat, VersusApp, M.A.T., Mein Quiz, ÖCV, iLearn.sk, VBS Learning, klimaaktiv, and others..