Description: AnkiDroid is a free and open-source flashcard app for Android. It allows users to create decks of flashcards with text, images, audio, and video, and uses spaced repetition to optimize studying. AnkiDroid can help memorize anything from languages, to science material, to trivia.
Type: software
Pricing: Open Source
Description: Ninchanese is a free web and mobile app for learning Chinese. It uses spaced repetition, audio lessons, and games to help beginners learn to speak, read, and write Chinese characters.
Type: software
Pricing: Subscription