Handwriting is the part people skip, and then wonder why characters will not stick. Writing a character is the only practice that forces you to know every component rather than recognise the silhouette — which is exactly the difference between "I have seen this" and "I know this".
The writing studio
/writing animates each character stroke by stroke and then asks you to trace it. You work through characters, set phrases and proverbs, building the muscle memory that recognition alone never gives you.

- Watch the animation — Every stroke in order, at a speed you can follow. Replay as often as you like.
- Trace it — On the character itself. Wrong stroke order is caught as you go rather than at the end.
- Then write it unaided — The step that matters. Tracing teaches the shape; writing from memory teaches the character.
Why stroke order is not pedantry
It looks like an arbitrary rule and it is not. Correct order makes a character come out balanced, makes it legible when written quickly, and — the practical one — is how handwriting input on a phone recognises what you drew.
It is also how you remember. Characters written in a consistent order become one motion instead of a dozen unrelated marks, which is why the same character takes three attempts to learn with order and thirty without.
Writing inside lessons
Every HSK lesson has its own Writing section covering the characters that lesson introduces, with the same animation and tracing. That is the version to use while working through the course; the studio is for practising characters you choose.
Getting your handwriting marked
Separate from tracing, and it does cost credits. Two features work together: 8 credits generates a sentence for you to write out, and 9 credits reads what you actually wrote and marks it.
That second one is the most expensive single action on a learner account, because it is a vision model looking at your image. Worth it occasionally as a check; not something to run every day.
The free references

Common questions
No. The stroke animations and tracing are free of credits — the data is stored, not generated. Only an AI marking your own handwriting costs anything.