Learn Japanese Kanji and Vocabulary using WaniKani's Spaced Repetition System.
This is a native iOS app.

* It's super-fast. All the mnemonics are pre-loaded on your device so there's no waiting.
* Do reviews and lessons offline. Your progress will be sync'd when you're online again.
* Graph showing your upcoming reviews.
* Graphs showing your progress on current level radicals, kanji and vocabulary.
* Options to ignore typos and add synonyms during reviews.
* Options to sort reviews by SRS level and Wanikani level.