Roget's II vs Thesaurus dictionary
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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...
Thesaurus dictionary
Enhance your writing by accessing a thesaurus directly from your keyboard. Select any word in any app to instantly see synonyms and related terms, helping you expand your vocabulary and refine your text. This ad-free tool offers a simple and effective way to improve your communication.
- Keyboard thesaurus integration
- Instant word suggestions
- Synonym lookup in any app
- Ad-free experience
- Simple interface
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Improve your writing with alternative word suggestion with a thesaurus built right into your keyboard. Just select a word and get similar words in any app your working in. Ad free and simple. Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://sites.google.com/view/thirtynineapps-privacy/home
Screenshots
Verdict
The clearest difference is price: Thesaurus dictionary at Free against Roget's II's $4.99. Thesaurus dictionary also leads on update cadence (every 3 weeks vs every 2 months). Roget's II's advantage is in-app purchases (none vs 3) and rating (4.7 vs 4.5). On ratings volume, ads and iOS requirement 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
Thesaurus dictionary is free to download; Roget's II costs $4.99 up front. Thesaurus dictionary sells 3 in-app purchases, starting at $1.99 per 7 days. Roget's II asks for nothing beyond the download.
Roget's II holds the better App Store score, 4.7 against 4.5. Both are backed by a comparable volume of ratings — 373 and 324 respectively. Written reviews point the same way: 49% of Roget's II's written reviews are positive against 33% of Thesaurus dictionary's.
Roget's II ships an update every 2 months, Thesaurus dictionary every 3 weeks. Both last shipped on October 27, 2026.
| Parameter | Roget's II | Thesaurus dictionary |
|---|---|---|
| Price | $4.99 | Free — better |
| Rating | 4.7 (373 ratings) — better | 4.5 (324 ratings) |
| Positive reviews | 49.1% of reviews — better | 33.3% of reviews |
| Number of ratings | 373 — better | 324 |
| Update frequency | Every 2 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Free with in-app purchases — better |
| Best chart rank | #120 — better | — |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 101 MB | 4 MB |
| Age rating | 9+ | 4+ |
| Developer | Enfour, Inc. | LEAP STUDIO |
Customer experience
Roget's II
Thesaurus dictionary
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
Thesaurus dictionary
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Roget's II
No in-app purchases
Thesaurus dictionary
- Weekly7 Days trial$1.997 Days
- Monthly$4.991 Month
- Yearly$24.991 Year
Questions
Is Roget's II free?
Is Thesaurus dictionary free?
Which has better reviews, Roget's II or Thesaurus dictionary?
Do Roget's II or Thesaurus dictionary have ads?
Which is updated more often, Roget's II or Thesaurus dictionary?
Other comparisons
