LearningCardOrganizer for Mac

From Uwe Schlosser:

"Learning Card Organizer" can make the learning of text-based factual knowledge, e.g. vocabulary much easier. This application is a virtual card index-box with 5 compartments. Each compartment stores virtual cards with questions and answers which have been learned to varying degrees of intensity. Assessment of whether a question has been answered satisfactorily or if a word has been learned thoroughly has to be decided by the learner himself.