Comparison

HSK Study and Exam vs duiduidui!

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

HSK Study and Exam

Prepare for the HSK Mandarin Chinese proficiency exam with this comprehensive study tool. It offers practice questions, mock exams, vocabulary training, and detailed explanations for all six HSK levels. Achieve your goals for studying or working in China.

Highlights
  • HSK vocabulary training
  • Practice listening, reading, and writing
  • Detailed answer explanations
  • Over 300,000 practice questions
  • Mock HSK exams
  • Covers HSK levels 1-6
Features
Read full description

The previous HSK Online app has been upgraded to SuperTest. SuperTest is the world’s leading Mandarin Chinese learning app, focused on Preparation for the HSK Exam. Secure your HSK Certificate with SuperTest Plus, the efficient and cost-effective way to prepare for your HSK exam. Our curated lesson plans make sure you save time and money by focusing only on what you need to prepare for the exam. What is HSK? HSK stands for Hanyu Shuiping Kaoshi (Chinese: 汉语水平考试) which is the standard Chinese language test in mainland China. You can take either a written HSK exam or an online exam. If you want to study in a Chinese university or work in a Chinese company, this is the test they use to measure your Chinese level. Entry into a Chinese university normally requires HSK 4, HSK 5 or HSK 6. Whatever your HSK related goal is, from studying in China’s top universities on scholarship to working for a global Chinese enterprise, SuperTest will help you attain it. As a SuperTest Plus member, you only deserve the best. SuperTest is the top study tool to level up your Chinese skill. Additionally, it is free to use and will help you to get the score you want on your HSK test. #1 Recommended HSK app All HSK exam sections covered: Train your HSK listening skills, practice your Chinese reading speed, and let our Chinese teachers help you perfect your Chinese essay writing skills which is an important section in the HSK 4, HSK 5 and HSK 6 exams. HSK vocabulary Practice your Chinese vocab for all HSK levels. Learn all the HSK words with our HSK vocabulary training function. All HSK words included. Detailed answer explanations To help you study for your HSK level exam, all the HSK practice material and HSK questions in the app have a detailed answer explanation. So whether you are preparing for HSK level 1 or HSK level 6, we’ve got you covered. Test preparation With a personalized daily AI review, daily mistakes review, and over 300,000 HSK practice questions, SuperTest has all you need to prepare for your HSK level test. Real HSK exams Practice for your HSK test with our HSK mock exams or previous real HSK tests for the best scores. 6 levels in one app This is a Mandarin Chinese learning app with HSK 1, HSK 2, HSK 3, HSK 4, HSK 5 and HSK 6. We cover Chinese listening, reading, and writing for beginners, intermediate, and advanced Mandarin Chinese learners. Plus Membership You will have unlimited access to all the features in SuperTest for the duration of your subscription. We have 6 types of SuperTest subscriptions: PLUS for 1 month: ¥118 PLUS for 12 months: ¥488 PLUS for Lifetime: ¥698 MAX for 1 month: ¥188 MAX for 6 months: ¥588 MAX for 12 months: ¥898 Please note: After confirming your purchase, your payment will be deducted from your iTunes account. Your account will be charged the same renewal price 24 hours before the end of your current subscription period. Subscriptions will automatically renew unless you turn off auto-renewal at least 24 hours before the end of your current subscription period. You may cancel your subscription or auto-renew at any time in account settings on the App Store. More details are in《SuperTest User terms》http://api.hskonline.com/node/privacy 《SuperTest subscription renewal terms》https://f.hskcdn.com/h5/privacy/hsk/protocol.html

About

duiduidui!

This app offers a comprehensive Chinese dictionary with audio and example sentences, plus an AI tutor for grammar and conversation practice. Features include a personal phrasebook, camera translation, and adaptive flashcards to track learning progress. It's designed to adapt to your learning style and grow with you from beginner to fluency.

Highlights
  • Comprehensive Mandarin dictionary
  • AI tutor for grammar and conversation
  • Personal phrasebook
  • Camera-based translation
  • Adaptive flashcards
  • Offline functionality
  • Progress tracking
Features
Read full description

duiduidui! is the Chinese learning app that actually keeps up with you. At its heart is a comprehensive Mandarin dictionary — over 200,000 words and phrases, with pinyin, natural-speech audio, and example sentences for every entry. It goes well beyond the textbook, covering modern vocabulary, colloquial speech, and the slang people actually use online and in everyday conversation. Look anything up, tap to hear it — and it all works offline, so your dictionary is with you on the subway, on a plane, or anywhere the signal drops. But duiduidui! is more than a dictionary: • Your own phrasebook — Star any word or phrase to build a personal phrasebook of favorites, always a tap away and ready to review whenever you want. • AI tutor — Chat in Chinese or English with a patient tutor that explains grammar, corrects you gently, and answers "but why?" as many times as you need. • Snap to translate — Point your camera at a sign, a menu, or handwriting and get an instant translation. • Adaptive flashcards — The review system tracks what you actually know and steers you toward the cards you're ready to learn next — never too easy, never overwhelming. • Real progress — Watch your vocabulary, streaks, and skill level grow, session by session. How it works duiduidui! learns your strengths and gaps as you study, then balances new words against review so you stay in the sweet spot for learning. The more you use it, the better it fits you. Start with a 7-day full-access trial — the entire dictionary, the AI tutor, and adaptive flashcards, free for a week. No commitment up front. Whether you're learning your first character or polishing toward fluency, duiduidui! grows with you. 对对对 — "right, right, right." — Subscription details: • After the free trial, duiduidui! offers Monthly ($12.99) and Annual ($89.99) subscriptions. • Payment is charged to your Apple ID at confirmation of purchase. • Subscriptions renew automatically unless canceled at least 24 hours before the end of the current period. • Manage or cancel anytime in your Apple ID settings. • Terms of Use: https://duiduidui.app/en/terms-of-service/ • Privacy Policy: https://duiduidui.app/en/privacy-policy/

Screenshots

HSK Study and Exam4 screens
duiduidui!4 screens

Verdict

The call

The clearest difference is ratings volume: HSK Study and Exam at 1.1K against duiduidui!'s 3. HSK Study and Exam also leads on update cadence (fortnightly vs every 6 weeks) and device support (3 vs 1). duiduidui!'s advantage is rating (5.0 vs 4.7). On price, ads, in-app purchases and monetization model 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. HSK Study and Exam sells 10 in-app purchases, starting at $15.99 per month and duiduidui! sells 2 in-app purchases, starting at $12.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

duiduidui! holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: HSK Study and Exam has 1.1K ratings behind it against 3, so its average is the more settled of the two.

UpkeepUpdate frequency

HSK Study and Exam ships an update fortnightly, duiduidui! every 6 weeks. The most recent releases landed on November 6, 2026 and October 31, 2026 respectively.

Scorecard5 real differences · 5 level
HSK Study and Exam versus duiduidui!: the parameters behind the verdict, then further details
ParameterHSK Study and Examduiduidui!
PriceFreeFree
Rating4.7 (1.1K ratings)5.0 (3 ratings) — better
Positive reviews73.6% of reviews—
Number of ratings1.1K — better3
Update frequencyFortnightly — betterEvery 6 weeks
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS13.0 — better16.4
Further details — not scored
Size152 MB111 MB
Age rating4+12+
DeveloperShanghai Yuxuan Information Technology Co. , LtdRed Thread Labs LLC

Customer experience

HSK Study and Exam

All ratings1,034 ratings
Positive92.7%
Neutral3.7%
Negative3.6%
Written reviews588 reviews
Positive73.6%
Neutral7.7%
Negative18.7%

duiduidui!

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

HSK Study and Exam

Reported bugs

5 issues
  • Freezing during mock tests and lessons
  • Inability to log in or access purchased content
  • Incorrect or missing translations
  • Inconsistent behavior when switching between devices
  • Unreliable audio playback

Requested features

5 requests
  • Add dark mode option
  • Improve iPad support and landscape mode
  • Provide more detailed grammar explanations
  • Integrate traditional Chinese character support
  • Enhance offline functionality

duiduidui!

Not enough reviews yet to summarise bugs or requests.

In-app purchases

10 purchases

HSK Study and Exam

Subscriptions3
  • HSKOnline vip renew 118$15.991 Month
  • AI MAX 1 Month Package$24.991 Month
  • AI MAX 12-Month Package$79.991 Year
One-time7
  • HSK Online Membership 1 month$5.99
  • HSKOnline Lifetime VIP$29.99
  • HSKOnline Lifetime VIP$56.99
Show 4 more
  • HSKOnline lifetime vip plus 3$59.99
  • HSKOnline lifetime vip plus 2$74.99
  • HSKOnline lifetime vip plus 1$89.99
  • HSKOnline lifetime vip plus$109.99
2 purchases

duiduidui!

Subscriptions2
  • Monthly$12.991 Month
  • Annual$89.991 Year

Questions

Is HSK Study and Exam free?
HSK Study and Exam is free to download, with in-app purchases available.
Is duiduidui! free?
duiduidui! is free to download, with in-app purchases available.
Which has better reviews, HSK Study and Exam or duiduidui!?
duiduidui! is rated higher. HSK Study and Exam averages 4.7 out of 5 from 1.1K ratings, while duiduidui! averages 5.0 from 3 ratings.
Do HSK Study and Exam or duiduidui! have ads?
Neither HSK Study and Exam nor duiduidui! shows ads.
Which is updated more often, HSK Study and Exam or duiduidui!?
HSK Study and Exam ships an update fortnightly, and duiduidui! every 6 weeks. Most recently, HSK Study and Exam was updated on November 6, 2026 and duiduidui! on October 31, 2026.

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