a few suggestions...

Ive had this app for a while now, and I think its great but...

*If there was an option to only test words with kanji, and to completely erase the furigana or hiragana and kanji side by side, that would be really helpful. In Japan, its not like hiragana is next to every kanji you see, and it helps reinforce the reading too rather than being lazy and seeing it adjacent to the character.
*And / or an option in settings to completely remove moji testing. I find that theres a lot of focus on moji but not on the actual MEANINGS of the words.
*The only reason I dont want to update this app is because of the background. The plain grey one was much easier for me to see and the options were clearer.

Other than that... I pretty much use this app daily, and I reccommend it to almost every person I know studying Japanese. I find it REALLY useful for studying, and the concise meanings make the words easier to absorb. If there was an option for 4.8 stars, Id definitely give it that.

Ainalisu about JLPT Study, 1-5 Level Kanji and Vocabulary Japanese Language Proficiency, v2.5.2