Comparison

Roget's II vs Interactive Thesaurus

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

Head to head
About

Roget's II

Access a comprehensive English thesaurus with millions of synonyms and related terms. Enhance your vocabulary and express yourself more effectively with this powerful reference tool, featuring advanced search and offline capabilities.

Highlights
  • Full text of Roget's II: The New Thesaurus
  • Millions of synonyms and related terms
  • Real-time progressive look-up
  • Wildcard searches
  • Clickable words within definitions
  • Bookmarks with notations
  • Offline use
Features
Read full description

This application brings the full "Roget's II: The New Thesaurus" to your fingertips. Includes "Moby Thesaurus II" by Grady Ward that adds 30,260 root words, with 2,520,264 synonyms and related terms. Want to increase your vocabulary? Want to better express yourself? Want all this on your iPhone or iPod touch? *************************************************** Main Features: * entire text of this superior reference title * complete appendices and front matter * real-time progressive look-up * wildcard searches for unknown spellings and quizzes * words within definitions are clickable * bookmarks with notations * automatic history * AI boosted anagram generator * 3D Touch support * DarkMode support * iPad "Fast App Switching" (Multitasking) * iPad Pro multi-screen and Drag & Drop * iPhone 18 & iOS27 support * Support for iPhones, iPads, iPods and macOS * hyperlinks to (optional) "UniDict® Engine" dictionaries * complete offline use - no internet connection is required *************************************************** Roget's II: The New Thesaurus is Houghton Mifflin's easy to use, accurate, and authoritative English thesaurus. This essential reference offers users the resources of the English language to enhance the expressiveness and accuracy of their communications. Roget's II: The New Thesaurus combines the most useful features of a thesaurus and a dictionary; each entry contains a short definition as well as a comprehensive list of synonyms for the headword. This up-to-date database also features extensive, and useful, cross-references. "Roget’s II: New Thesaurus from Enfour offers the best value for features and content." "Roget’s II stands out as a clear choice for anyone who needs both quality content and rich features." -MacWorld (Kate Dohe) "4 mice" Roget’s II: The New Thesaurus, Third Edition published by Houghton Mifflin Harcourt Publishing Company. All rights reserved. Houghton Mifflin Harcourt Publishing Company http://www.hmco.com/ ___________________ Powered by Enfour Inc's "UniDict® Engine 18" Works with these "UniDict®" dictionaries from Enfour: American Heritage Dictionary Oxford Dictionary of English Australian Oxford Dictionary Longman Dictionary of Contemporary English Longman English-Japanese Dictionary and many more...

About

Interactive Thesaurus

Explore word meanings and relationships with this smart English thesaurus. It helps you find suitable words, expand your vocabulary, and improve grammar through an intuitive interface with semantic relations and color-coded parts of speech. Offline access and sharing options are included.

Highlights
  • 200,000+ English words and definitions
  • Visual semantic relations between words
  • Color coding for parts of speech
  • Word suggestions
  • Editable bookmarks
  • Offline access
Features
Read full description

Interactive Thesaurus is a new smart way to explore word meanings and relations. This application is a English thesaurus that helps you find the meanings for words and show relations between associated words. You can quickly find a suitable word, extend your vocabulary and improve your grammar. FEATURES: ● More than 200,000 English words and definitions ● Intuitive interface that shows semantic relations between words ● Color coding for different parts of speech ● Word suggestions ● Editable bookmarks function ● Undo/Redo ● Save the result image into Photo library, send it by email or share it with your friends ● No internet connection required FEEDBACK: If you enjoy it, be sure to rate each new version 5 star on the App Store. If you have any comments or suggestions, email me at support@alextataurov.com. THESAURUS SOURCE: The application uses the WordNet® lexical database (created by Princeton University).

Screenshots

Roget's II4 screens
Interactive Thesaurus4 screens

Verdict

The call

Roget's II and Interactive Thesaurus both sit at 4.7 stars, but that hides the real split: 71% of Interactive Thesaurus's written reviews are positive against 49% of Roget's II's. Interactive Thesaurus also leads on price ($2.99 vs $4.99) and iOS requirement (13.0 vs 15.0). Roget's II's advantage is update cadence (every 2 months vs every 3 months). On rating, ratings volume, 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

Roget's II costs $4.99 and Interactive Thesaurus $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.7 for Roget's II against 4.8 for Interactive Thesaurus. Both are backed by a comparable volume of ratings — 373 and 760 respectively. Written reviews are what separate them: 49% of Roget's II's written reviews are positive against 71% of Interactive Thesaurus's.

UpkeepUpdate frequency

Roget's II ships an update every 2 months, Interactive Thesaurus every 3 months. The most recent releases landed on October 27, 2026 and October 26, 2026 respectively.

Scorecard4 real differences · 6 level
Roget's II versus Interactive Thesaurus: the parameters behind the verdict, then further details
ParameterRoget's IIInteractive Thesaurus
Price$4.99$2.99 — better
Rating4.7 (373 ratings)4.8 (760 ratings) — better
Positive reviews49.1% of reviews71.0% of reviews — better
Number of ratings373760 — better
Update frequencyEvery 2 months — betterEvery 3 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPod, Mac — betteriPhone, iPad, iPod
Requires iOS15.013.0 — better
Further details — not scored
Size101 MB96 MB
Age rating9+12+
DeveloperEnfour, Inc.Alexey Tataurov

Customer experience

Roget's II

All ratings368 ratings
Positive94.3%
Neutral1.1%
Negative4.6%
Written reviews114 reviews
Positive49.1%
Neutral7.9%
Negative43.0%

Interactive Thesaurus

All ratings759 ratings
Positive94.5%
Neutral2.8%
Negative2.8%
Written reviews69 reviews
Positive71.0%
Neutral8.7%
Negative20.3%

User reviews

Roget's II

From 373 App Store ratings

What we love

  • 🚀 Comprehensive thesaurus
  • 👍 Easy to use interface
  • 📚 Invaluable tool for writers
  • 🔍 Helpful search options
  • 🔖 Useful bookmarking feature

Room to improve

  • 🐛 Crashes and stability issues
  • 🔍 Limited search functionality
  • 📚 Incomplete word coverage
  • 🖥️ Poor user interface design
  • 💰 Overpriced compared to alternatives

Interactive Thesaurus

From 760 App Store ratings

What we love

  • 👍 Great app
  • 🚀 Fast and efficient
  • 💡 Innovative visual approach
  • ❤️ Helpful writing tool
  • 👍 Useful for writing and expanding vocabulary

Room to improve

  • 🐛 Crashes and performance issues
  • 🤔 Overlapping words and cluttered display
  • 🤔 Limited word associations and definitions
  • 🤔 Rotation and movement issues

Bugs and requests

Roget's II

Reported bugs

4 issues
  • Constant 'Total Failure' error message
  • Crashes on launch after recent updates
  • Incompatibility with newer iOS versions
  • Inability to contact customer support

Requested features

5 requests
  • Sort synonyms by part of speech
  • Add more comprehensive word coverage
  • Improve search and filtering capabilities
  • Integrate with other writing apps
  • Provide customization options for font and layout

Interactive Thesaurus

Reported bugs

3 issues
  • Crashes when typing
  • Tapping on words doesn't always work as expected
  • Inconsistent behavior across devices

Requested features

4 requests
  • Allow users to add words
  • Ability to isolate and expand individual word nodes
  • Option to turn off animation/rotation
  • Incorporate audio/sound features

In-app purchases

None

Roget's II

No in-app purchases

None

Interactive Thesaurus

No in-app purchases

Questions

Is Roget's II free?
Roget's II costs $4.99, with no in-app purchases.
Is Interactive Thesaurus free?
Interactive Thesaurus costs $2.99, with no in-app purchases.
Which has better reviews, Roget's II or Interactive Thesaurus?
Interactive Thesaurus is rated higher. Roget's II averages 4.7 out of 5 from 373 ratings, while Interactive Thesaurus averages 4.8 from 760 ratings.
Do Roget's II or Interactive Thesaurus have ads?
Neither Roget's II nor Interactive Thesaurus shows ads.
Which is updated more often, Roget's II or Interactive Thesaurus?
Roget's II ships an update every 2 months, and Interactive Thesaurus every 3 months. Most recently, Roget's II was updated on October 27, 2026 and Interactive Thesaurus on October 26, 2026.

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