In Japan, you paint one eye of a daruma when you set a goal, and the second when you reach it. Darumaji turns that ritual into the way you learn kanji.
It helps, because readings are written in kana. If you start from scratch, learn them alongside: a few days are enough, and Darumaji always shows the reading with audio.
The default goal is 20 reviews a day, about ten minutes for most people. You can change it in the settings.
Yes. All of N5, the first 20 N4 kanji, reviews, writing and Kanji Invasion are free with no time limit. The paid Complete plan unlocks all of N4, N3 to N1 and every game.
All five levels, N5 to N1, are available: 2,136 kanji with meanings, readings, animated stroke order, example words and audio.
Nothing to set up: every kanji comes ready with its readings, examples, pronunciation and strokes. And you get games and a small daily ritual to keep going.
Yes, the site adapts to mobile and your progress syncs across devices. An Android app is on its way.