KanjiSchool
Drag the slider. No other reader does this — and you should see it working, not read about it.
Tap any kanji for its meaning
A university in Shizuoka studied a town where people could live on the Moon.
The students used a famous game to build a town on the Moon.
The Moon has no air, and rocks fall onto it.
So they built the houses underground to live safely.
The round roof lets light through and protects the houses from rocks.
A student said they had imagined the world of the Moon through a game.
Pick the hardest line you can still read. 20 seconds, no account needed.
Because that is how Japanese children learn to read. Japan's Ministry of Education fixes exactly which character belongs to which grade — so "grade 3" is a boundary you can verify, not a feeling. Every article here is machine-checked: if a single character sits above its grade, it is not published.
The result: you never hit a character you have not learned. That is the whole reason this product exists.
One article at the level you picked, sent at 7:00. No account needed. One tap to stop.