1. There is a detailed explanation in each problem according to the reach of the JLPT N4 (linguistic knowledge) character vocabulary. A learner can grasp a point easily.
2. As well as adding to the character reach of N4, the explanation is being displayed that a hint is pushed even if it isn't understood while practicing. You can go to maturity so that it's done a circle and penalty come out right now without an unnecessary thing, and when repeating it and practicing.
Data was corrected.
With Family Sharing set up, up to six family members can use this app.