AnkiMobile Flashcards. Unfortunately it's $25, but the price is well worth it. I've learned Greek using Anki. If you ever move to Android, the app is free and

AnkiMobile Flashcards. Unfortunately it's $25, but the price is well worth it. I've learned Greek using Anki. If you ever move to Android, the app is free and open source, and I've contributed code to it!