Comparison

Clozemaster-Vocabulary Builder vs Duory

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

Head to head
About

Clozemaster-Vocabulary Builder

Master vocabulary in over 50 languages by filling in missing words in real-world sentences. This gamified app challenges learners with cloze tests, contextual learning, and progress tracking to build fluency. Offers multiple learning modes and detailed grammar explanations.

Highlights
  • Cloze test vocabulary learning
  • Contextual sentence learning
  • 50+ languages available
  • Gamified learning with leaderboards
  • Progress tracking and spaced repetition
  • Vocabulary, Listening, and Speaking modes
  • Grammar explanations
Features
Read full description

Learn 50+ languages with Clozemaster — the gamified language learning app for A2-C1 learners to master vocabulary by filling in missing words in real-world contexts. [ MASTER LANGUAGES WITH THE CLOZE TEST METHOD ] • Level up your language skills with cloze tests, where you fill in the missing word, challenging you to complete sentences. • Learn vocabulary in context, moving beyond single-word flashcards to complete sentences drawn from real-life scenarios. [ CONTEXTUAL LEARNING FOR REAL-WORLD FLUENCY ] • Experience language as it's used in daily life; learn by completing thousands of sentences in over 50 languages. • Progress through sentences sorted by frequency, focusing first on the words you're most likely to use. [ EXPLORE A WEALTH OF LANGUAGES ] • Play over 50 languages - Afrikaans, Albanian, Amharic, Arabic, Armenian, Azerbaijani, Basque, Belarusian, Bengali, Breton, Bulgarian, Cantonese, Catalan, Cornish, Croatian, Czech, Danish, Dutch, English (Ingles), Esperanto, Estonian, Finnish, French, Galician, Georgian, German, Greek, Guarani, Hebrew, Hindi, Hungarian, Icelandic, Indonesian, Interlingue, Irish, Italian, Japanese, Kazakh, Korean, Latin, Latvian, Lithuanian, Lojban, Macedonian, Mandarin Chinese, Maori, Nahuatl, Norwegian, Persian Farsi, Polish, Portuguese, Romanian, Russian, Scottish Gaelic, Serbian, Slovak, Slovenian, Spanish (Español), Swahili, Swedish, Tagalog, Thai, Toki Pona, Turkish, Ukrainian, Vietnamese, Welsh, Yiddish. • Each language offers authentic phrases and expressions, enhancing cultural understanding. [ GAMIFY YOUR LEARNING JOURNEY ] • Score points for correct answers, competing on a global leaderboard to make learning engaging and rewarding. • Tackle language challenges to stay motivated, with gamified exercises enhancing your daily learning. [ TAILOR YOUR LANGUAGE EXPERIENCE ] • Adjust the speaking speed to match your comprehension level, catering to learners at all stages. • Visual progress tracking and spaced repetition help you climb the leaderboard and master sentences efficiently. [ DIVERSE LEARNING MODES FOR A HOLISTIC APPROACH ] • Engage with three distinct modes - Vocabulary, Listening, and Speaking - to cater to different aspects of language learning. • Try out the beta feature 'Radio' for a hands-free learning experience, listening to sentences with translations and thoughtful pauses. [ INTERACTIVE LEARNING SUPPORT ] • If you answer incorrectly, tap "Explain" for detailed grammar explanations, aiding your understanding and retention. [ FREE TO PLAY, RICH IN LEARNING ] • Start your language learning journey for free, with essential features accessible to all users. • Choose to upgrade to Clozemaster Pro for a more comprehensive and customized learning experience. [ UNLOCK ADVANCED FEATURES ] • Gain unlimited access to advanced learning features and in-depth exercises with the Pro version. • Create and share custom sentence collections, allowing for a tailored and personalized learning experience. • Access a vast library of grammar challenges and exclusive content, enhancing your linguistic proficiency. Download Clozemaster now and transform your approach to language learning. Whether you are a beginner or an advanced learner, Clozemaster offers a unique and effective way to expand your vocabulary and understand the intricacies of over 50 languages. • Upon confirming your purchase, the charge will be applied to your Apple account. • To provide uninterrupted service, subscriptions renew automatically. Your account will be charged for renewal within 24 hours before the end of the current period. • Manage auto-renewal settings anytime by adjusting your preferences in the App Store. • For a deeper understanding of our policies, please review https://www.clozemaster.com/terms For support or feedback, contact us at hello@clozemaster.com Start your journey to language mastery today!

About

Duory

This app helps you learn languages by organizing notes, practicing vocabulary, and journaling. It offers features like translation, pronunciation recording, and spaced repetition to enhance your learning journey. Offline functionality and customizable widgets make it a versatile tool for language learners.

Highlights
  • Organize notes for multiple languages
  • Practice vocabulary with spaced repetition
  • Journal in target languages
  • Hands-free practice sessions
  • Capture phrases from various sources
  • Offline language tasks
  • Home and Lock Screen widgets
Features
Read full description

Save time and stay focused—no more bouncing between translation apps, Google search and your notes. Study, practice, and reflect with dynamic language notes. Why Duory? • Duory is the smartest way to take language notes on your phone. • Duory lets you keep and organize notes for all your target languages in one place. • Save time and stay focused — no more bouncing between Google Search and your notes. • Practice hands-free while doing boring chores. • Improve your output by journaling in your target languages. • Capture interesting phrases from anywhere! • Browse vocabulary from your own notes in a focused, immersive way. • Add background images and videos to create personal connections with each word or phrase. • Make them stick with Home and Lock Screen widgets. • Vocab practice sessions, Playlists, and widgets are powered by FSRS-6.0, an advanced spaced repetition algorithm. • Duory supports 40 target languages. NOTES • Duory is designed to perform language tasks on-device thanks to Apple’s language APIs and other offline language tools. • To perform translations, iOS needs to download language dictionaries for each language pair. This only happens once for each pair. • Duory requires access to your microphone for you to record pronunciation of phrases and your camera for scanning text. FREE FOREVER Get started for free with these features: • Create notes and journals in one target language. • Enhance your language journals with Apple Journaling Suggestions. • Capture phrases from your physical textbooks, Duolingo sessions, images, or RTF/PDF documents. • Use a handy widget to reinforce recently learned words and phrases. • In-app translation and transliteration, including Hiragana and Pinyin. • Record and play back your phrases (no playlists on the free plan). • Access notes you create during your free trial or subscription – forever! Important: If you create notes in target languages outside of the initial language during an active subscription, they will become read-only when your subscription expires (the notes you create in your oldest target language will remain editable forever) DUORY PLUS PLANS Unlock the full power of Duory with a subscription: • Create notes and journals in multiple languages. • Turn your phrases into playlists for hands-free practice. • Control playback from your lock screen or Control Center. • Turn plain notes into memorable ones with stickers and pictures. • Sync your notes and journals to iCloud. Plans are available on a monthly or annual basis. Your payment is charged to your iTunes account. Subscriptions auto-renew unless canceled at least 24 hours before the end of the current period. You can turn off auto-renewal at any time by going to your Account Settings on the App Store after purchase. Start your journey with a 14-day free trial on annual plans—cancel anytime to avoid charges. You will always have permanent access to notes created during the trial period or while your subscription was active. However, an active subscription is required to create new notes or edit existing ones in languages other than the first target language you added in Duory. Notes created in the first target language you add to Duory remain editable forever with or without an active subscription. LANGUAGE TRANSLATION SUPPORT ** Duory uses Apple’s Translation API for on-device translation. Here’s the full list of supported languages: • Arabic • Chinese (Mandarin, Simplified) • Chinese (Mandarin, Traditional) • Dutch • English • French • German • Hindi • Indonesian • Italian • Japanese • Korean • Polish • Portuguese (Brazil) • Russian • Spanish (Spain) • Thai • Turkish • Ukrainian • Vietnamese PRIVACY Duory is designed with your privacy in mind. We don’t track your data or store your information. Privacy Policy: https://duory.alewa.co/privacy.html Terms of Service: https://duory.alewa.co/terms.html

Screenshots

Clozemaster-Vocabulary Builder4 screens
Duory4 screens

Verdict

The call

The clearest difference is review sentiment: Clozemaster-Vocabulary Builder at 83% against Duory's 0%. Clozemaster-Vocabulary Builder also leads on rating (4.8 vs 1.0) and ratings volume (2.1K vs 1). On price, update cadence, ads and in-app purchases 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. Clozemaster-Vocabulary Builder sells 8 in-app purchases, starting at $8.99 per month and Duory sells 4 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Clozemaster-Vocabulary Builder holds the better App Store score, 4.8 against 1.0. That said, the two scores are not equally well evidenced: Clozemaster-Vocabulary Builder has 2.1K ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 83% of Clozemaster-Vocabulary Builder's written reviews are positive against 0% of Duory's.

UpkeepUpdate frequency

Clozemaster-Vocabulary Builder ships an update every 9 days, Duory every 5 days. The most recent releases landed on November 9, 2026 and November 8, 2026 respectively.

Scorecard4 real differences · 6 level
Clozemaster-Vocabulary Builder versus Duory: the parameters behind the verdict, then further details
ParameterClozemaster-Vocabulary BuilderDuory
PriceFreeFree
Rating4.8 (2.1K ratings) — better1.0 (1 ratings)
Positive reviews82.6% of reviews — better0.0% of reviews
Number of ratings2.1K — better1
Update frequencyEvery 9 daysEvery 5 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumFreemium
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.4 — better18.6
Further details — not scored
Size120 MB155 MB
Age rating12+4+
DeveloperLanguage Innovation LLCAdegboyega Dada

Customer experience

Clozemaster-Vocabulary Builder

All ratings2,100 ratings
Positive95.7%
Neutral1.5%
Negative2.9%
Written reviews545 reviews
Positive82.6%
Neutral6.6%
Negative10.8%

Duory

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Bugs and requests

Clozemaster-Vocabulary Builder

Reported bugs

3 issues
  • Crashes and performance issues on older devices
  • Incorrect translations and sentence examples
  • Inconsistencies in language-specific features

Requested features

5 requests
  • Ability to add custom sentences and vocabulary
  • More detailed grammar explanations and lessons
  • Integration with other language learning resources
  • Improved user interface and navigation
  • Offline mode with full functionality

Duory

Not enough reviews yet to summarise bugs or requests.

In-app purchases

8 purchases

Clozemaster-Vocabulary Builder

Subscriptions8
  • Clozemaster Pro Monthly$8.991 Month
  • Clozemaster Pro Monthly2 variants$12.991 Month
  • Clozemaster Pro Monthly1 Month trial2 variants$12.991 Month
Show 5 more
  • Clozemaster Pro Yearly$69.991 Year
  • Clozemaster Pro Yearly$79.991 Year
  • Clozemaster Pro Annual1 Year trial$79.991 Year
  • Clozemaster Pro Annual7 Days trial$79.991 Year
  • Clozemaster Pro Yearly7 Days trial$79.991 Year
4 purchases

Duory

Subscriptions4
  • Duory Plus (Monthly)$2.991 Month
  • Duory Family Plus (Monthly)$4.991 Month
  • Duory Plus (Annual)14 Days trial$29.991 Year
Show 1 more
  • Duory Family Plus (Annual)14 Days trial$49.991 Year

Questions

Is Clozemaster-Vocabulary Builder free?
Clozemaster-Vocabulary Builder is free to download, with in-app purchases available.
Is Duory free?
Duory is free to download, with in-app purchases available.
Which has better reviews, Clozemaster-Vocabulary Builder or Duory?
Clozemaster-Vocabulary Builder is rated higher. Clozemaster-Vocabulary Builder averages 4.8 out of 5 from 2.1K ratings, while Duory averages 1.0 from 1 ratings.
Do Clozemaster-Vocabulary Builder or Duory have ads?
Neither Clozemaster-Vocabulary Builder nor Duory shows ads.
Which is updated more often, Clozemaster-Vocabulary Builder or Duory?
Clozemaster-Vocabulary Builder ships an update every 9 days, and Duory every 5 days. Most recently, Clozemaster-Vocabulary Builder was updated on November 9, 2026 and Duory on November 8, 2026.

Other comparisons