Comparison

Prolog Language Courses vs Clozemaster-Vocabulary Builder

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

Head to head
About

Prolog Language Courses

Learn new languages with interactive lessons featuring audio and text. Access dozens of free lessons, with options to upgrade to full courses for a low price. Study anytime, anywhere, with a focus on listening, reading, and speaking.

Highlights
  • Interactive audio and text lessons
  • Dozens of free lessons
  • Full course upgrades available
  • Learn English, French, German, Spanish, and more
  • Phrasebooks for various languages
  • Study on the go
Features
Read full description

Prolog language courses: learn a new language by watching, listening and repeating. Every lesson is a short video with clear native pronunciation and on-screen subtitles, so you learn by listening and speaking rather than memorizing lists. Watch on your iPhone, iPad or the web — your progress follows you everywhere. — — — Speakit.tv Pro is an auto-renewing subscription. - Length: 1 month, 3 months or 6 months - Price: shown in the app before you confirm, in your local currency - Payment is charged to your Apple ID at confirmation of purchase - It renews automatically unless cancelled at least 24 hours before the end of the current period, at the same price - Manage or cancel anytime in your Apple ID account settings Privacy Policy: https://speakit.tv/privacy-policy Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Clozemaster-Vocabulary Builder

Master vocabulary in over 50 languages through engaging cloze tests. Learn words in real-world sentence contexts, track progress, and compete globally. Offers multiple learning modes and grammar explanations.

Highlights
  • Cloze tests for vocabulary learning
  • Learn vocabulary in context
  • Over 50 languages available
  • Gamified learning with leaderboards
  • Multiple learning modes (Vocabulary, Listening, Speaking)
  • Grammar explanations
  • Adjustable speaking speed
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!

Screenshots

Prolog Language Courses4 screens
Clozemaster-Vocabulary Builder4 screens

Verdict

The call

The clearest difference is review sentiment: Clozemaster-Vocabulary Builder at 83% against Prolog Language Courses's 0%. Clozemaster-Vocabulary Builder also leads on update cadence (every 11 days vs every 5 months). 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. Prolog Language Courses sells 19 in-app purchases, starting at $7.99 per month and Clozemaster-Vocabulary Builder sells 8 in-app purchases, starting at $8.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Prolog Language Courses ships an update every 5 months, Clozemaster-Vocabulary Builder every 11 days. Both last shipped on October 29, 2026.

Scorecard2 real differences · 8 level
Prolog Language Courses versus Clozemaster-Vocabulary Builder: the parameters behind the verdict, then further details
ParameterProlog Language CoursesClozemaster-Vocabulary Builder
PriceFreeFree
Rating—4.8 (2.1K ratings) — better
Positive reviews0.0% of reviews82.5% of reviews — better
Number of ratings—2.1K — better
Update frequencyEvery 5 monthsEvery 11 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.6 — better16.4
Further details — not scored
Size54 MB83 MB
Age rating4++12
DeveloperProlog LTDLanguage Innovation LLC

Customer experience

Prolog Language Courses

Written reviews6 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Clozemaster-Vocabulary Builder

All ratings2,067 ratings
Positive95.7%
Neutral1.5%
Negative2.8%
Written reviews544 reviews
Positive82.5%
Neutral6.6%
Negative10.8%

Bugs and requests

Prolog Language Courses

Not enough reviews yet to summarise bugs or 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

In-app purchases

19 purchases

Prolog Language Courses

Subscriptions3
  • Speakit.tv — 1 Month$7.991 Month
  • Speakit.tv — 3 Months$22.993 Months
  • Speakit.tv — 6 Months$44.996 Months
One-time16
  • Hebräisch – Sprachführer$5.99
  • Hébreu Manuel de conversation$5.99
  • HEBREO Manual de Conversación$5.99
Show 13 more
  • Иврит – разговорник$5.99
  • HEBREW - Let's speak!5 variants$7.99
  • Hebrew - on Video!$14.99
  • Spanish - on Video!$14.99
  • Inglés - ¡En vídeo!$14.99
  • Portugués - ¡En vídeo!$14.99
  • Иврит по видео$14.99
  • Английский по видео$14.99
  • الإنكليزية - بالفيديو!$14.99
  • Hebrew Ulpan Video Course$17.99
  • Hebrew Verbs and Conjugations$20.99
  • Welcome to Hebrew$24.99
  • HEBREW - Let's Speak!$24.99
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 trial2 variants$79.991 Year
  • Clozemaster Pro Annual7 Days trial$79.991 Year
  • Clozemaster Pro Yearly7 Days trial$79.991 Year

Questions

Is Prolog Language Courses free?
Prolog Language Courses is free to download, with in-app purchases available.
Is Clozemaster-Vocabulary Builder free?
Clozemaster-Vocabulary Builder is free to download, with in-app purchases available.
Do Prolog Language Courses or Clozemaster-Vocabulary Builder have ads?
Neither Prolog Language Courses nor Clozemaster-Vocabulary Builder shows ads.
Which is updated more often, Prolog Language Courses or Clozemaster-Vocabulary Builder?
Prolog Language Courses ships an update every 5 months, and Clozemaster-Vocabulary Builder every 11 days. Most recently, Prolog Language Courses was updated on October 29, 2026 and Clozemaster-Vocabulary Builder on October 29, 2026.

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