Delay is infuriating
On first blush the app is quite polished, with both kanas, and a nice minimalist interface that doesn’t get in the way of learning. The levels build on each other and the compounds are a good way to break up the repetitiveness. All of that praise is destroyed by the loading time for characters in the quiz. The quizzes are time based, creating a sense of pressure that can be useful. However it takes 3+ seconds just to do the pop-out animation for the answered question. This is unconscionable in a timed quiz, and very quickly becomes infuriating. This behaviour effectively puts a cap on the number of questions you can answer of ~30 for no discernible reason. Speed of recognition is a significant aspect of fluency, and this app shoots itself in the foot by denying the learner the opportunity to test themselves in this way.