Anki
Description: Anki is a free, open-source flashcard program that uses spaced repetition to help users memorize information more efficiently. It allows users to create digital flashcards with text, images, audio, videos, and LaTeX support. Anki's algorithm schedules flashcards to show up at increasing intervals based on the user's performance to reinforce long-term memory.
Type: software
Pricing: Open Source
Vocabla
Description: Vocabla is a free online vocabulary and flashcard app to help improve your vocabulary. It allows you to create custom word lists and flashcards to study, with options for multiple choice, written, and listening questions. Vocabla tracks your progress so you can focus studying on words you struggle with.
Type: software