SuperMemo Alternatives

SuperMemo is described as '(from "Super Memory") is a learning method and software package developed by SuperMemo World in Poland from 1985 to the present. It is a practical application of the spaced repetition learning technique that has been proposed for efficient instruction by a' and is a language learning tool in the education & reference category. There are more than 50 alternatives to SuperMemo for a variety of platforms, including Web-based, Android, iPhone, iPad and Windows apps. The best SuperMemo alternative is Anki, which is both free and Open Source. Other great apps like SuperMemo are AnkiDroid, RemNote, Memrise and Mochi.