Duolingo builds daily habits. Aelu builds Chinese reading, listening, speaking, and tone accuracy. When you are ready to move beyond gamification, this is where serious study begins.
Free for HSK 1-2. No credit card required.
| Feature | Duolingo | Aelu |
|---|---|---|
| Drill/exercise types | ~4 types | 27 types |
| Tone instruction | Poor | Tone grading |
| Graded reading | Sentence-level | Passages by HSK |
| Listening practice | Basic audio | Speed control |
| Speaking practice | Limited | With tone grading |
| Spaced repetition | Minimal | Adaptive spaced repetition |
| Multi-skill diagnostics | No | Per-skill tracking |
| HSK alignment | Unofficial | HSK 1-9 |
| Cleanup loop (read → drill) | No | Automatic |
| Gamification | Streaks, XP, leagues | None |
| Native mobile app | iOS, Android | Web app |
| Price | Free (ads) / $7-13/mo | Free / $14.99/mo |
We are not here to dismiss Duolingo. It deserves credit for several things it genuinely does better than most alternatives.
Duolingo's engagement design genuinely works. Millions of people study daily because of streaks, XP, and the owl. That is a real achievement.
But engagement is not the same as learning. Duolingo's Chinese course is notably weaker than its European language courses -- no Stories feature, poor tone handling, limited grammar explanations. For a tonal language where pronunciation determines meaning, these gaps are significant.
Aelu does not have Duolingo's mobile polish or its habit-forming gamification. What it has is 44 drill types that test real cognitive skills, a graded reader that feeds your review queue, tone grading, and diagnostics that separate vocabulary from listening from reading from tones.
You'll find the same story in every language forum: a year of perfect streaks, but still can't order dinner in Mandarin. Dedication was never the problem.
Free for HSK 1-2. Full features, not a trial.
No credit card. No streaks. Just learning.