Anki is a spaced repetition flashcard program. Anki is the Japanese word for memorization.

Memrise is a Language learning Platform with a website and iOS and Android Apps.

Ginger is a grammar checker, an online tool that will correct any mistake you make.

SuperMemo is a learning method and software.

Khan Academy is a non-profit educational organization.

Udemy.com is an online learning platform. It is aimed at professional adults who want to add new skills to their resumes, or explore their passions.

Cram is an online platform to create and share online flashcards.

Babbel is a subscription-based language learning app and e-learning platform.