Wordbrush: Learn Chinese HSK

Mandarin flashcards with audio

Free · Designed for iPad. Not verified for macOS.

Free. Every HSK 1-3 word with natural HD audio, characters annotated, and FSRS spaced repetition. Ten minutes a day. No accounts, no ads, no IAP, no streak guilt. Drill every HSK 1, 2, and 3 word into long-term memory, all 2,200 of them, in frequency order. Natural HD audio for every word and every example sentence, every character decoded by its radicals, scheduled by FSRS spaced repetition. No accounts. No ads. No streak guilt. Ten minutes a day. Open it, do today's session, close it. Come back tomorrow. The science wins arguments. Wordbrush uses FSRS, the modern free spaced repetition scheduler that powers Anki. Cards reappear on the precise day your brain is about to forget them, not before, not after. Failed cards loop back in minutes; mastered cards stretch out for months. A Chinese flashcard without sound is half broken. Every word is paired with studio-quality audio rendered by Google's Chirp 3 HD voices. Tones, prosody, register, all there. Every word also gets a hand-curated example sentence in a second voice for context. Show, don't tell. Each character is broken down into its radicals, the meaningful sub-components, with pinyin, name, and a one-line note on what they signify. The water radical 氵, the heart radical 心, the woman radical 女. You stop memorizing characters one stroke at a time and start seeing how they're built. The HSK levels unlock in order. You start with HSK 1. Once you have introduced every HSK 1 word, HSK 2 unlocks. Then HSK 3. The Statistics screen shows your progress through each level. The scheduler keeps you focused on what's actually in front of you, not what comes next. What's inside: • 2,200 words, every HSK 1-3 word, in frequency order • 4,400 audio recordings (one per word, one per example sentence) • Five card formats: recognition, listening, and production for every word, plus sentence-building and character-tracing cards • Hand-curated example sentences for every word • Character breakdowns by radical, with etymology and position • Bottom-up unlock so you finish HSK 1 before HSK 2 starts • A simple home page: a calendar showing your activity, today's count, and a single "begin" button • iPhone and iPad • Full VoiceOver, Dynamic Type, and high-contrast support What's not inside: • No accounts. All your data lives on this device. • No advertisements. • No in-app purchases. • No notifications nagging you back. • No streak shame. Skip a day, the app waits patiently. • No leaderboards. The only person you're competing with is yesterday's you. Open the app. Today's session is already cued up. Read or listen to the front of each card, mentally answer, then tap to reveal. Rate honestly, Again if you missed it, Easy if it was instant. Wordbrush handles the rest. Built for: • Adult learners who already know other resources exist for grammar and conversation, and want a tool that does one thing well • Anyone who's bounced off gamified language apps and wants something that respects their time • People who appreciate restrained, calligraphic design over neon mascots Wordbrush is finished. Open it, do today's session, close it. Come back tomorrow.

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One clear count of what is left. A single reviews countdown now follows you across the session, the home screen, and the end of a session, so you always know how close you are to done. Audio cards play on their own now, no tap needed. And the example sentences on the back of a card show their characters bigger, easier to read at a glance. New words arrive at a gentler pace when a backlog has built up, so a heavy day never piles on more than you can meet. Ten minutes a day. Free, as always.

The developer, Urban Algorithm LLC, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

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    Seller
    • Urban Algorithm LLC
    Size
    • 156.6 MB
    Category
    • Education
    Compatibility
    Requires iOS 18.0 or later.
    • iPhone
      Requires iOS 18.0 or later.
    • iPad
      Requires iPadOS 18.0 or later.
    • Mac
      Requires macOS 15.0 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 2.0 or later.
    Languages
    • English
    Age Rating
    4+
    Copyright
    • © 2026 Urban Algorithm, LLC