- Pronunciation is fully system-based (AVSpeech).
- There’s a cross-folder review mode («Words you often forget») that aggregates weak cards across the entire library based on actual performance history, not just per-deck repetition.
- Folders are portable files. You can export a .cardsmy file and send it via AirDrop, and it just imports on the other side. No account needed.
- CloudKit handles full sync, including images.
- AI examples of word usage. AI generation of cards and folders.
