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Questions

Including the ones with answers you might not want to hear.

Is there a free version?
Yes. The first half of HSK 1 is free with no card and no time limit, which is enough to tell whether the review loop suits you. Pro unlocks every HSK 1–9 vocabulary band and all graded readers.
What does it cost?
€4.99 monthly or €39 yearly. The recommended yearly plan saves 35% compared with twelve monthly payments. Both plans renew until cancelled, and you can manage the subscription from the app.
Does it check my tones?
No, and nothing that runs in a browser honestly can yet. The pronunciation check tells you which word the browser recognised, which catches whole-syllable mistakes but not a second tone read as a third. Treat it as a spot check, not a grader.
Can I bring vocabulary I already have?
Yes. There is a CSV import that reads Hack Chinese exports, including the review state, so an existing collection arrives already scheduled rather than starting from zero.
Does it work on a phone?
It is built mobile-first and runs in the browser, so there is no app to install and nothing to update. It works on a desktop too, and uses the extra room rather than stretching a phone layout across it.
What happens to my words if I stop paying?
Nothing is deleted, and anything you have already studied stays available. A lapsed subscription stops new material; it does not take your progress away.
Simplified or traditional characters?
Study is simplified-first, which matches HSK. Traditional forms are shown alongside where a word has one, so you can read them without switching mode.

Still deciding?

Half of HSK 1 is free. That is enough to know.

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