Comparison

Dictionary and Thesaurus Pro vs Sensus

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

Head to head
About

Dictionary and Thesaurus Pro

Access a comprehensive offline dictionary and thesaurus with extensive content in multiple languages. Explore definitions, synonyms, and specialized dictionaries for various fields. Enjoy an ad-free experience with features like word games and instant lookups.

Highlights
  • Ad-free experience
  • Offline English dictionary and thesaurus
  • Offline dictionaries in 13 languages
  • Offline translations to over 40 languages
  • Specialty dictionaries (Medical, Legal, etc.)
  • Word games and daily content
  • Instant word lookup from other apps
Features
Currently charting
Read full description

Get the world's most comprehensive ad-free dictionary and thesaurus with extensive offline dictionary content and synonyms. Dictionary Pro is the premium version of The Free Dictionary app, featuring: * No ads. * A comprehensive English offline dictionary and offline thesaurus. * Offline dictionaries in 13 other languages. * Offline translations of English into more than 40 languages. * Dozens of other offline translation options. Rated #1 app in the App Store in the paid reference category in 109 countries 2011–2019 (Source: http://www.appannie.com/apps/ios/app/492085918/app-ranking/#device=iphone&type=best-ranks) Plus TheFreeDictionary's classic app content: * Find every word you search for. Get results from trusted sources: Webster's Dictionary Roget's Thesaurus The American Heritage Dictionary + More than 100 dictionaries and encyclopedias from these top publishers: McGraw-Hill Houghton Mifflin HarperCollins Random House Elsevier + More! * Learn the word. Clear definitions, example sentences, etymologies, illustrations, and more. * Learn how to say it. Play audio pronunciations and hear it pronounced. * Learn something new. Word of the Day and other fresh daily content. * Find the perfect synonym fast. East-to-use Thesaurus with synonyms, antonyms, and related words. * Explore topics in-depth. Multiple specialty dictionaries and encyclopedias: Medical Legal Science Financial Idioms Acronyms and Abbreviations + More! * Watch idioms in action. View idioms videos inside the app and see idioms and slang explained. * Play word games. Spelling Bee, Hangman, and more. * Access dictionaries in 13 other languages, including: Spanish French German Italian Portuguese Russian Chinese + More! What makes Dictionary Pro the most user-friendly dictionary app? * Instantly look up words in apps or webpages! Just highlight the word you want to look up, tap "Share," then tap "More" in the bottom menu and turn on the "Define" option. You will then see a "Define" icon in the menu. Tap it to see the definition of the highlighted word! * Voice search. Just say the word to look it up. * Advanced Search options. * Look up the definition of any word on the page. Just highlight and tap "Definition." * Save bookmarks with one tap and sync them to all your devices. * Customize your homepage: Move, add, or remove articles, games, even local weather. * Jump to Definition, Thesaurus, or Translations with one button. * Navigate the app in more than a dozen languages with the multilingual interface. * Adjust font size. * Share your favorite definitions and articles via social networks, email, or text. EXCLUSIVE * Earn meals for hungry children through The Free Dictionary's partnership with the World Food Program—just by using the app! Not convinced? Read our reviews to see why our users say this is the best dictionary app they've ever used. How do we do it? Farlex is a leader in dictionary apps. We work with the best publishers to bring together trusted content in the most comprehensive, authoritative dictionary apps on the market. Find our other apps by searching "Dictionary by Farlex" in the App Store. * For app developers: The Free Dictionary app can be accessed by other apps with API calls (Contact Farlex for instructions).

About

Sensus

Explore the English language with a comprehensive dictionary and thesaurus. Access over 1.2 million words and phrases, including offline capabilities, detailed definitions, and pronunciation guides. Offers translations in multiple languages and an ad-free, one-time purchase experience.

Highlights
  • 1.2 million words and phrases
  • Offline access
  • Multiple etymologies
  • Detailed definitions
  • Pronunciation guides
  • Semantic relationships
  • Multi-language translations
Features
Read full description

Discover the richness of the English language with our dictionary. Featuring a vast collection of 1.2 million words and phrases, this app is the perfect companion for exploring English. On-Demand Content: • Access translations in Arabic (United Arab Emirates), Chinese (China mainland), Chinese (Taiwan), Dutch (Netherlands), French (France), German (Germany), Hindi (India), Indonesian (Indonesia), Italian (Italy), Japanese (Japan), Korean (South Korea), Polish (Poland), Portuguese (Brazil), Russian (Russia), Spanish (Spain), Thai (Thailand), Turkish (Turkey), Ukrainian (Ukraine), and Vietnamese (Vietnam). Features: • Comprehensive Vocabulary - Access 1.2 million words and phrases. • Offline Access - Fast and available anytime. • Action Extension - Highlight a word and open it in Sensus with one tap. • Multiple Etymologies - Explore the history of words. • Detailed Definitions - Understand words with thorough explanations. • Clear Examples - Learn with engaging usage examples. • Pronunciation Guides - Master pronunciations with IPA and audio links. • Semantic Relationships - Discover synonyms, antonyms, and more. Try the demo featuring an extensive selection of the most popular words. If you like it, consider purchasing the full version with over a million words and phrases. Why choose Sensus? • Ad-Free Experience - Use without distractions. • One-Time Purchase - Unlock the entire dictionary with a single payment. • Family Sharing Enabled - One purchase grants access to everyone in the family.

Screenshots

Dictionary and Thesaurus Pro4 screens
Sensus4 screens

Verdict

The call

The clearest difference is price: Sensus at Free against Dictionary and Thesaurus Pro's $9.99. Sensus also leads on update cadence (every 3 weeks vs every 4 months). Dictionary and Thesaurus Pro's advantage is in-app purchases (none vs 1) and chart position (#65 vs unranked). On 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

Sensus is free to download; Dictionary and Thesaurus Pro costs $9.99 up front. Sensus sells 1 one-off in-app purchase. Dictionary and Thesaurus Pro asks for nothing beyond the download.

UpkeepUpdate frequency

Dictionary and Thesaurus Pro ships an update every 4 months, Sensus every 3 weeks. The most recent releases landed on October 27, 2026 and October 24, 2026 respectively.

Scorecard6 real differences · 5 level
Dictionary and Thesaurus Pro versus Sensus: the parameters behind the verdict, then further details
ParameterDictionary and Thesaurus ProSensus
Price$9.99Free — better
Rating4.9 (2.6K ratings) — better—
Positive reviews86.6% of reviews—
Number of ratings2.6K — better—
Update frequencyEvery 4 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
Best chart rank#65 — better—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.0 — better18.0
Further details — not scored
Size22 MB314 MB
Age rating4+17+
DeveloperFarlex, Inc.Lukasz Zielony

Customer experience

Dictionary and Thesaurus Pro

All ratings2,560 ratings
Positive97.0%
Neutral1.1%
Negative1.9%
Written reviews469 reviews
Positive86.6%
Neutral2.8%
Negative10.7%

Sensus

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Dictionary and Thesaurus Pro

Reported bugs

3 issues
  • Search function sometimes fails to load definitions
  • Offline mode has fewer word entries than online
  • Occasional sync issues between online and offline data

Requested features

4 requests
  • Add more language dictionaries
  • Improve thesaurus with more synonyms and antonyms
  • Implement flashcard or vocabulary building features
  • Allow users to save custom word lists

Sensus

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Dictionary and Thesaurus Pro

No in-app purchases

1 purchases

Sensus

One-time1
  • Lifetime Access$0.99

Questions

Is Dictionary and Thesaurus Pro free?
Dictionary and Thesaurus Pro costs $9.99, with no in-app purchases.
Is Sensus free?
Sensus is free to download, with in-app purchases available.
Do Dictionary and Thesaurus Pro or Sensus have ads?
Neither Dictionary and Thesaurus Pro nor Sensus shows ads.
Which is updated more often, Dictionary and Thesaurus Pro or Sensus?
Dictionary and Thesaurus Pro ships an update every 4 months, and Sensus every 3 weeks. Most recently, Dictionary and Thesaurus Pro was updated on October 27, 2026 and Sensus on October 24, 2026.

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