Comparison

World Words vs Cluedup.ai

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

Head to head
About

World Words

Master foreign vocabulary with personalized flashcards and interactive tests. Contribute to a global learning community by sharing and discovering new words. Practice daily with home screen widgets.

Highlights
  • Create custom flashcards
  • Take knowledge consolidation tests
  • Learn words from a global community
  • Share vocabulary with others
  • Use home screen widgets for daily practice
Features
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World Words: Live without borders Application Overview: World Words is your ideal language learning assistant that will help you memorize foreign words effectively. Key functions: 1. Custom Cards: - Create personalized flashcards for any foreign words you want to learn and practice anywhere, anytime. 2. Tests: - Take tests to consolidate your knowledge. Save and share the results. 3. The "World" section: - Learn new words from other users. Contribute to the global community by sharing your words and phrases. Learn from others and discover new vocabulary by sharing your experiences 4. Widgets for memorization: - Use interactive widgets on your phone's home screen to practice words daily. Privacy policy: http://g95071v2.beget.tech Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula

About

Cluedup.ai

Features
Read full description

Have you ever dreamed about learning from what you actually like to read? Some words that appear again and again while you are reading in a foreign language, any website, any article, or piece of news. You don’t know or don’t remember how to translate them, and sometimes translators mislead with infinite dictionaries of possible translations. CluedUp.ai will help you not only reduce the time spent translating and tracking relevant, contextual information, but also conveniently save the words and practice along with relevant vocabulary in a learning-friendly environment. So how does it work? No destruction while reading. You just select a single word, click the badge and see the translation of the selected text inside the surrounding context, click the save button, and that’s it. What’s next? The saved word appears in the learning dashboard. We track each 10th of your savings and build a custom learning pipeline based on your selection word complexity and semantic relevance. In simple words, if you save the words related to “sleeping” at around the B1 level, we will provide you with vocabulary lessons related to sleeping at the current level. You can choose the vocabulary complexity you want to practice, and we will do our best to fit the vocabulary pool to your needs. What languages do we support? While our primary focus is on expanding the language support, we currently offer features for the Estonian community that want to progress in English. Am I safe using the extension? Yes! We want to emphasise that we want to teach you new vocabulary usage, not track your personal data. CluedUp.ai has no interest in tracking any personal data. Moreover, you are completely safe to translate any text. We don’t save your translation history until you explicitly save the relevant word. Any extra concerns? We get it. You can always click the pause button and prevent the extension from working in your private pages. If you have any issues or concerns, please contact support@cluedup.ai to get instant assistance. Every user’s voice is important to us, and we will do our best to provide you with the best possible experience. Learn more about our privacy policy here https://app.cluedup.ai/privacy_policy

Screenshots

World Words4 screens
Cluedup.ai4 screens

Verdict

The call

The clearest difference is in-app purchases: Cluedup.ai at none against World Words's 3. On price, update cadence, ads and device support 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. World Words sells 3 in-app purchases, starting at $0.99 per month. Cluedup.ai asks for nothing beyond the download.

UpkeepUpdate frequency

World Words ships an update every 4 weeks, Cluedup.ai every 3 weeks. The most recent releases landed on October 23, 2026 and October 25, 2026 respectively.

Scorecard1 real difference · 9 level
World Words versus Cluedup.ai: the parameters behind the verdict, then further details
ParameterWorld WordsCluedup.ai
PriceFreeFree
Rating5.0 (5 ratings) — better—
Positive reviews85.7% of reviews—
Number of ratings5 — better—
Update frequencyEvery 4 weeksEvery 3 weeks — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Mac — better
Requires iOS15.315.0 — better
Further details — not scored
Size90 MB4 MB
Age rating4+4+
DeveloperUliana GritchinaCluedup.ai

In-app purchases

3 purchases

World Words

Subscriptions2
  • World Words Premium$0.991 Month
  • World Words Premium Annual$9.991 Year
One-time1
  • Add 100 cards$0.69
None

Cluedup.ai

No in-app purchases

Questions

Is World Words free?
World Words is free to download, with in-app purchases available.
Is Cluedup.ai free?
Cluedup.ai is free to download, with no in-app purchases.
Do World Words or Cluedup.ai have ads?
Neither World Words nor Cluedup.ai shows ads.
Which is updated more often, World Words or Cluedup.ai?
World Words ships an update every 4 weeks, and Cluedup.ai every 3 weeks. Most recently, World Words was updated on October 23, 2026 and Cluedup.ai on October 25, 2026.

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