Ambient Hanzi: Learn Mandarin

Learn Chinese the way you actually pick up a language: passively, all day, plus focused study when you want it. Ambient Hanzi is a Mandarin Chinese learning app built around real HSK vocabulary (the complete HSK 1 through 9 standard), spaced-repetition cards, stroke order writing practice, listening dictation, and a home screen that teaches you Chinese characters without you opening the app.

PASSIVE LEARNING: CHINESE ON YOUR HOME SCREEN
Most language apps only work while you're staring at them. Ambient Hanzi also works while you're not.
• Five home screen widgets: word, grid, date, clock, and battery, each cycling real Chinese vocabulary in the background.
• A word in your notification shade, optional and toggleable, so a new Mandarin word is a glance away all day.
• New HSK words unlock a few at a time as you go, so your home screen never dumps the whole deck on you at once.

ACTIVE LEARNING: STUDY WHEN YOU WANT
When you're ready to actually sit down and learn, Ambient Hanzi has real study tools, not just exposure.
• Spaced-repetition cards: grade your own recall (Again / Hard / Good / Easy) on single words or whole sentences, and what you're still learning comes back more often, on a real per-word schedule.
• Listening dictation: hear a real sentence, then rebuild it, by tapping word tiles into order, typing the pinyin, or typing the characters. No keyboard needed if you use tiles.
• Stroke order writing practice: watch the correct stroke order animate, then trace each character by hand on a 田字格 grid, checked stroke by stroke.
• Character breakdowns: see what a hanzi's parts are actually doing, a radical carrying the meaning, a component there only for the sound, or a short note on the character's history.
• Tone curves: a small curve under each word's pinyin traces the shape of its tone, so you learn Mandarin tones visually, not just by ear.

MORE WAYS TO LEARN CHINESE
• Scan real-world text: point your camera at a menu, sign, or label and see what it means. On-device OCR (Google ML Kit) reads the Chinese text, no photo ever leaves your phone. Note: this is a tool to help you study, it does not translate sentences.
• A real Chinese dictionary: search any word or sentence by hanzi, pinyin, or meaning, and see its HSK level, pinyin, meaning, and an example sentence in one place.
• Achievements, streaks, and stats: badges for streaks and mastery milestones, plus accuracy tracking for cards, writing, and listening, and what you miss most.

FREE HSK 1, ALWAYS
The complete HSK 1 vocabulary is free, across every feature: widgets, cards, writing, listening, dictionary, and scan, for as long as you're learning. Ambient Hanzi Pro unlocks HSK 2 through 9 (including the advanced HSK 7-9 tier), plus extra vocabulary with no official HSK level, for learners ready to go further into Mandarin Chinese.

NO ACCOUNT, NO INTERNET REQUIRED
No sign-up, no login. Every Chinese word, example sentence, and stroke animation already lives on your phone, so there's nothing to connect to just to learn.

Ambient Hanzi is for anyone who wants to learn Chinese hanzi and HSK vocabulary without carving out a dedicated study block every day. Let Mandarin vocabulary become part of your day on its own, and dig into cards, writing, or listening whenever you're actually in the mood.