Useful for learning and reviewing. But needs some work.

The free version only gives the most basic Japanese words and kanji for studying. However there are 750 of them so that easily gives You a lot more to study than some of the other tree apps . This is not a native app for the iPad ,So you have to use the 2x view to use the full screen.

You can randomize the Words and it has a nice methodology which gives you the Words in both directions:
1. English and you have to pick the Correct Japanese word-
2. Japanese word and you guess the English meaning.

It only moves on to the next set of words after you have correctly guessed the meanings of the words you missed. There is also a feature to tap again to move onto the next word . this is Convenient so you can learn or go review the current word.

Summary:
Good for learning and reviewing words. but not great for grammar or reading comprehension or listening skills . you Will need other study aids if you are studying above N3 level. Unite if I will buy the paid version.

luv2iPad about JLPT Study FREE, Kanji and Vocabulary Japanese Proficiency Level N5, v2.1