This application helps you to learn Japanese characters using a gradual learning algorithm which makes you test-like questions.
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It keeps a inner score of how much you know a character to give priority to ask you again about it if needed and introduces a new characters when you are ready.
<caption>There is a featured character 'a' and 5 toggle buttons which read えおういand あ being the last one marked, there is a green text saying You are doing great because the exercise have succeded, there is a button which reads 'Continue'</caption>
<caption>There is a featured character 'i' and 5 toggle buttons which read あ い う(marked)えand お, there is a red text saying 'Meck!! The correct answer is い', because the exercise has failed, there is a button which reads 'Continue'</caption>