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
Wind is born from air moving.
When the sun warms the ground, the air above it also grows warm.
Warm air becomes light and rises into the sky.
Then the heavier air around it moves in.
This flow of air is the true nature of wind.
The greater the difference in the ground's temperature, the stronger the wind becomes.
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.