Not a streak app — a mastery system from your first character to HSK 6. It's hard, but it's just work, and this makes the work stick. Your free first lesson is right below. ↓
Lesson one is free on this page · no subscription · zero to mastery, on your own timeline
That's the real study room — all 722 topics unlock with lifetime access. Or start free below. ↓
Learn the four tones, trace the ten most common characters in the language in real stroke order, then use them to ask your first question. Start now.
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Not thousands of words — a small set of comment + question moves, memorized cold. Here's the whole trick:
I'm Carson. I studied Mandarin at Middlebury, at ICLP in Taipei, and as a Yenching Scholar at Peking University — that's me in the video. Those programs work. They also cost thousands and demand you drop your life to attend.
HSK Mastery is that path, self-study: one map of everything the language requires, nothing unlocks until you've proven the step before it, nothing you learn is allowed to fade. Streak apps keep beginners renewing forever. I want the opposite — pay once, own your timeline, actually get there.
— Carson 木林森
A century of learning science, four steps. That's the whole trick.
Brand new? The lesson above is literally step one. Know some already? A free placement test finds exactly where your knowledge ends.
Every lesson sits at the edge of what you know — words, grammar, and speaking together, in steps small enough you're never lost. You recall actively, never just re-read.
A topic opens only once you've proven everything it builds on — in quizzes that mix in what you learned weeks ago, so recall (not recognition) moves you forward.
Spaced repetition brings each word back just before you'd forget it. What you learn in week one is still yours in year two.
722 topics from zero to HSK 6, each wired to what it depends on. You'll always know where you are and what's next.
You start at the wide base and climb. Drag to rotate & tilt · Ctrl+scroll to zoom · double-click to reset · hover any dot to peek at a topic
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Subscriptions are priced to keep you renewing forever. Immersion programs cost thousands. This is one payment for the entire path, at your pace, for as long as you need.
It's hard, but it's just work — and every step is mapped. One payment, the whole path.
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