Each time a card is remembered, the user rates how well they remembered it on a scale of 1-3. Tougher words will be shown more frequently, and easier words will be showed less frequently.

AnkiDroid offers more than 6000 topics to learn from (not all are languages).

Synchronize data with Windows/Mac/Linux/iOS and other Android devices.

Each language offers access to more than 150 dialogues between native speakers. These can help build a more natural understanding for the learner.

You can design your own cards and adjust the spaced repetition algorithm to match your learning preferences.