Learn Mandarin Chinese with AI
Learn Mandarin Chinese with four-tone pronunciation grading, character stroke-order training, and HSK exam preparation. Simplified and Traditional character support. Ages 5 to adult.
Four-Tone Precision Grading
Mandarin's four tones (plus neutral) change word meaning entirely. Koydo's tone grading visualizes your pitch contour against native targets and drills the tone pairs that cause the most confusion.
Character Recognition & Writing
Learn Simplified or Traditional characters with stroke-order tracing, radical decomposition, and handwriting recognition. The HSK vocabulary list structures your character acquisition from HSK 1 (150 words) to HSK 6 (5,000 words).
Pinyin Foundation
Start with Pinyin romanization to build pronunciation confidence, then progressively transition to character-only reading. Koydo supports the Pinyin-to-character bridge that Chinese teachers recommend.
HSK 1 through HSK 6
Full alignment with the Hanyu Shuiping Kaoshi from HSK 1 (beginner) to HSK 6 (advanced). Track vocabulary, grammar, reading, and listening against official HSK benchmarks.
Frequently asked questions
Does Koydo grade Mandarin tones accurately?
Simplified or Traditional characters?
Is Mandarin available for young children?
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