Butterfly flip is a learning game similar to flashcards, but with an intelligent progress tracking system that helps you learn faster. after you "flip" to the answer, you pick if you were right or wrong. the program remembers which butterflies you have trouble with, and which you have learned well. it focuses on the problematic items, while using longer spans of time between repetitions of learned material. - 130+ butterflies in large pictures - browse mode: to review all the butterflies - progress tracking with stats & auto save - completely offline: play anytime
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