Du vs HSK Training
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Du
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Du helps you build a small Chinese habit without sitting down for a long lesson. It's not meant to help you learn Chinese quickly, but rather slowly but consistently. Pick a deck, set a tiny daily goal, and let your Home Screen widget keep one useful word in view. Open the app when you want to reveal pinyin, hear the word, quiz yourself, or review what is due. It is built for quick, repeated glances: - Home Screen widgets for daily Chinese vocabulary - Many desks by difficulty as well as practical decks for food, travel, transport, shopping, health, numbers, and time - Pinyin, short meanings, and example sentences - Quick self-graded quizzes - Daily goals, streaks, and spaced review - Local-first learning with no account required
HSK Training
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Get ready for the HSK exam with HSK Training. Practice real exam-style exercises for HSK 1–6, build daily vocabulary habits with spaced reviews, and track your level from beginner to advanced — all in one focused app. HSK LEVEL TEST Not sure where to start? Take a placement test aligned with the new HSK standard (HSK 3.0). About 3 minutes, exam-style questions, no account required. We'll recommend the right level so you practice where it counts. EXAM-STYLE PRACTICE Train for every part of the HSK — listening, reading, and writing — with drills that match the official exam format. • Instant scoring and clear explanations after every answer • AI-graded writing so you know how your answers stack up • Focus on your weakest sections and improve where it matters most • Timed practice that feels like the real test LEARN VOCABULARY EVERY DAY Short daily sessions make HSK vocabulary stick. • Spaced repetition so reviews land before you forget • Official HSK word lists by level • Unit path with checkpoints as you progress • Streaks, daily goals, and XP to keep the habit going DICTIONARY & GRAMMAR Look up every HSK word and grammar pattern in one place. • Search by hanzi, pinyin, or meaning • Browse by HSK level • Jump from a word into practice so you use what you learn TRACK YOUR PROGRESS See how you're improving at a glance. • Accuracy over time and 30-day practice rollups • Weakest-part recommendations for what to do next • Milestones and mastery toward your HSK level • Share your profile and streak with friends BUILT FOR REAL STUDY • HSK 1 through 6 (plus higher-band vocabulary where available) • Light and dark themes • Sign in with Google or email — sync progress across devices • Clean, focused design so you spend time studying, not navigating Whether you're starting HSK 1 or polishing HSK 6, HSK Training helps you practice smarter: real exam formats, daily vocab that sticks, and a clear path to your next level. Find your HSK level in minutes.
Screenshots
Verdict
The clearest difference is in-app purchases: HSK Training at none against Du's 1. On price, ads, device support and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Du sells 1 one-off in-app purchase. HSK Training asks for nothing beyond the download.
| Parameter | Du | HSK Training |
|---|---|---|
| Price | Free | Free |
| Update frequency | — | Every 9 days |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 16.4 | 16.4 |
| Further details — not scored | ||
| Size | 55 MB | 52 MB |
| Age rating | 4+ | 4+ |
| Developer | Redd King LLC | joze kosmerl |
In-app purchases
Du
- Lifetime$1.99
HSK Training
No in-app purchases









