Anki is described as 'Program which makes remembering things easy. Because it is a lot more efficient than traditional study methods, you can either greatly decrease your time spent studying, or greatly increase the amount you learn' and is a leading flashcard learning tool in the education & reference category. There are more than 100 alternatives to Anki for a variety of platforms, including Web-based, Android, iPhone, iPad and Windows apps. The best Anki alternative is AnkiDroid, which is both free and Open Source. Other great apps like Anki are RemNote, Quizlet, Memrise and Mochi.