Comparison

Roget's II vs Chambers Dictionary

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
Currently charting
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

Chambers Dictionary

This comprehensive English dictionary offers extensive coverage of words, including new terms from science and culture. It features intelligent search with spelling suggestions, pattern matching, and filtering, plus standard tools like bookmarks and anagrams. An offline reference for word enthusiasts and crossword solvers.

Highlights
  • Extensive word coverage
  • Latest new words
  • Intelligent spelling suggestions
  • Advanced search with pattern matching
  • Filter search results by word type
  • Offline functionality
  • Anagrams
Features
Read full description

Chambers is the single-volume international English dictionary with the widest coverage of all the riches of the English language. Clear, accurate and occasionally witty definitions, with the latest new words from science, technology and contemporary culture. This 13th Edition reflects the changes in our language, with special attention paid to new words that have emerged, new uses of old words and the most up-to-date pronunciation. The 13th Edition includes over 260,000 distinct words, compounds, phrases and derived forms. The intelligent word entry suggests possible correct spellings as you type, as well as listing words that sound the same or are often confused. Search features include: - Alphabetical listing - Spelling suggestions - Sounds-like and often-confused - Fast pattern-matching search (*, ?, vowel and consonant) - Filter search results by noun, verb, adjective, adverbs - Customize search options (case, derived forms, etc) - Full text search - Anagrams There are also standard bookmark, recent word and random word features. No Internet connection is required, and it supports Split View and Slide over for use with other apps on iPad. The Chambers Dictionary is treasured by word-lovers and crossword enthusiasts for its majestic coverage of English and its tradition of sneaking in a sprinkling of light-hearted definitions. Alone among the single-volume dictionaries, it preserves a rich stock of words from our literary heritage as well as covering all the latest developments in contemporary English. Chambers Thesaurus is also available as a separate app, and can easily be cross-referenced from the dictionary. Our WordWeb, Chambers, Collins and Oxford dictionaries are also available separately for Windows and Mac desktop.

Screenshots

Roget's II4 screens
Chambers Dictionary4 screens

Verdict

The call

Roget's II and Chambers Dictionary both sit at 4.7 stars, but that hides the real split: 79% of Chambers Dictionary's written reviews are positive against 49% of Roget's II's. Roget's II's advantage is price ($4.99 vs $9.99) and ratings volume (373 vs 17). On rating, 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

Roget's II costs $4.99 and Chambers Dictionary $9.99 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 4.6 for Chambers Dictionary. That said, the two scores are not equally well evidenced: Roget's II has 373 ratings behind it against 17, so its average is the more settled of the two. Written reviews are what separate them: 49% of Roget's II's written reviews are positive against 79% of Chambers Dictionary's.

UpkeepUpdate frequency

Roget's II ships an update every 2 months, Chambers Dictionary every 4 months. Both last shipped on October 23, 2026.

Scorecard5 real differences · 6 level
Roget's II versus Chambers Dictionary: the parameters behind the verdict, then further details
ParameterRoget's IIChambers Dictionary
Price$4.99 — better$9.99
Rating4.7 (373 ratings) — better4.6 (17 ratings)
Positive reviews49.1% of reviews78.8% of reviews — better
Number of ratings373 — better17
Update frequencyEvery 2 months — betterEvery 4 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
Best chart rank#85 — better—
DevicesiPhone, iPad, iPod, Mac — betteriPhone, iPad, iPod
Requires iOS15.0 — better15.5
Further details — not scored
Size101 MB58 MB
Age rating9+4+
DeveloperEnfour, Inc.Antony Lewis

Customer experience

Roget's II

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

Chambers Dictionary

All ratings13 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews113 reviews
Positive78.8%
Neutral8.8%
Negative12.4%

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

Chambers Dictionary

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Roget's II

No in-app purchases

None

Chambers Dictionary

No in-app purchases

Questions

Is Roget's II free?
Roget's II costs $4.99, with no in-app purchases.
Is Chambers Dictionary free?
Chambers Dictionary costs $9.99, with no in-app purchases.
Which has better reviews, Roget's II or Chambers Dictionary?
Roget's II is rated higher. Roget's II averages 4.7 out of 5 from 373 ratings, while Chambers Dictionary averages 4.6 from 17 ratings.
Do Roget's II or Chambers Dictionary have ads?
Neither Roget's II nor Chambers Dictionary shows ads.
Which is updated more often, Roget's II or Chambers Dictionary?
Roget's II ships an update every 2 months, and Chambers Dictionary every 4 months. Most recently, Roget's II was updated on October 23, 2026 and Chambers Dictionary on October 23, 2026.

Other comparisons