Comparison

WordBook (Universal) vs Power Thesaurus

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

Head to head
About

WordBook (Universal)

This comprehensive English dictionary and thesaurus offers extensive definitions, word origins, and pronunciation guides. It includes a built-in spell checker, bookmarking, and advanced search capabilities for word puzzles.

Highlights
  • Professionally recorded pronunciations
  • Word origin information (Etymologies)
  • Built-in spell checker
  • Bookmark and note management
  • Advanced word search and puzzle solver
  • 150,000+ entries with 220,000+ definitions
  • Words of the Day
Features
Read full description

FEATURES that make WordBook stand out from other dictionary apps: - Professionally recorded pronunciation for every single entry - Word origin information (Etymologies) - Built-in spell checker with pop-up spelling suggestions - User's bookmark and note management - Unmatched sounds-like and wild card search and a powerful word puzzle solver ==================================== WordBook is a comprehensive, quick and intuitive dictionary and thesaurus of the English language. It's a great combination of comprehensive contents and fast intuitive interface. FEATURES: * 150,000 entries with more than 220,000 definitions, 70,000 usage samples * 23,000 root word origins (etymologies) * 120,000 pronunciation guides in International Phonetic Alphabet (IPA) and other notations * Spoken pronunciations (for all entries) * Built-in thesaurus and word links connecting words semantically * Unmatched index, wildcard, anagram search capabilities * Bookmark (with user's notes) and history management * Words of the Day: you get to learn new words daily, shake the device for new random words * Browser-like definition content navigation, ability to tap on any word in the content to look up its definition * Extending up to 5 web dictionaries to supplement built-in contents * High resolution graphics for Retina display REVIEWS: * "Mobile dictionary and thesaurus at my fingertips. Lightning fast. The random words of the day are a terrific bonus" - Dane Cook, The Daily * “the best in the [inexpensive dictionary] category... This wealth of information is indispensable to the student, and even fun to use” - Jeff Phillips, Macworld * “One of 15 Best Apps for English Majors” - April Lentini, CollegeTimes.us * “None measure up to WordBook” Score: 10/10 - Michael Alexander, AppCraver.com * “WordBook leads the parade of free and low-cost dictionary options” - Ben Boychuk, MacWorld.com * “WordBook dictionary - the standard for reference apps” Rating: 5/5 - Steven Yaccino, appolicious.com NOTES: - WordBook does not required an internet connection except to view web dictionaries or to play online pronunciation voices. - WordBook includes entries of both American/British spellings. Definitions are written in American English.

About

Power Thesaurus

Find accurate synonyms, antonyms, definitions, and related words with this comprehensive and fast thesaurus. Designed for writers, students, and professionals, it offers intuitive navigation and smart filters to help you express ideas clearly and confidently.

Highlights
  • Ad-free PRO Membership
  • Intuitive navigation
  • Smart filters
  • Flexible sorting
  • Quick tools (copy, pronounce, save)
  • Personal library (favorites, history)
  • Cross-device sync
Features
Read full description

Brought to you by PowerThesaurus.org, the trusted and acclaimed online thesaurus. Discover accurate synonyms, antonyms, definitions and related words — expertly reviewed and continuously refined for clarity and context. Enjoy a fast, comprehensive, and user-friendly experience built for writers, students, and professionals. Power Thesaurus helps you express ideas clearly and confidently, wherever you write. Key Features • Ad-free PRO Membership – unlock more content and seamless browsing • Intuitive navigation – a clean, easy-to-use interface • Smart filters – narrow results by part of speech, tags, or type • Flexible sorting – arrange by rating, alphabet, syllables, or length • Quick tools – copy, pronounce, and save words instantly • Personal library – favorites and search history at your fingertips • Cross-device sync – access your account anywhere Loved by millions worldwide, Power Thesaurus makes word discovery effortless. If you enjoy the app, please take a moment to rate and review — your feedback helps us improve. Questions or suggestions? Contact apple@powerthesaurus.org. Write with confidence. Express with precision! Terms and Conditions: https://www.powerthesaurus.org/_terms_conditions Privacy Policy: https://www.powerthesaurus.org/_privacy_statement

Screenshots

WordBook (Universal)4 screens
Power Thesaurus3 screens

Verdict

The call

The clearest difference is price: Power Thesaurus at Free against WordBook (Universal)'s $2.99. Power Thesaurus also leads on update cadence (monthly vs every 4 months) and ratings volume (3.1K vs 275). WordBook (Universal)'s advantage is in-app purchases (none vs 2) and ads (none vs shown). On rating, review sentiment 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

Power Thesaurus is free to download; WordBook (Universal) costs $2.99 up front. Power Thesaurus sells 2 in-app purchases, starting at $3.99 per month. WordBook (Universal) asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.7 for WordBook (Universal) against 4.8 for Power Thesaurus. That said, the two scores are not equally well evidenced: Power Thesaurus has 3.1K ratings behind it against 275, so its average is the more settled of the two. Written reviews are what separate them: 88% of WordBook (Universal)'s written reviews are positive against 86% of Power Thesaurus's.

UpkeepUpdate frequency

WordBook (Universal) ships an update every 4 months, Power Thesaurus monthly. Both last shipped on October 24, 2026.

Scorecard7 real differences · 3 level
WordBook (Universal) versus Power Thesaurus: the parameters behind the verdict, then further details
ParameterWordBook (Universal)Power Thesaurus
Price$2.99Free — better
Rating4.7 (275 ratings)4.8 (3.1K ratings) — better
Positive reviews87.6% of reviews — better85.7% of reviews
Number of ratings2753.1K — better
Update frequencyEvery 4 monthsMonthly — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationPaidFreemium — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS7.0 — better15.1
Further details — not scored
Size28 MB70 MB
Age rating9+4+
DeveloperTranCreative SoftwareRadyushin Pty Ltd

Customer experience

WordBook (Universal)

All ratings275 ratings
Positive93.1%
Neutral2.9%
Negative4.0%
Written reviews170 reviews
Positive87.6%
Neutral5.3%
Negative7.1%

Power Thesaurus

All ratings3,053 ratings
Positive95.2%
Neutral1.4%
Negative3.5%
Written reviews384 reviews
Positive85.7%
Neutral3.6%
Negative10.7%

User reviews

WordBook (Universal)

From 275 App Store ratings

What we love

  • 👍 Comprehensive dictionary with detailed definitions
  • 🚀 Fast and efficient lookup
  • 💡 Helpful thesaurus and word origin features
  • 👍 Customizable web links for additional reference
  • 👍 Useful for crosswords and puzzles

Room to improve

  • 🐛 Some words missing or inaccurate definitions
  • 🔇 Pronunciation issues or missing audio
  • 🚫 Lack of updates and new features
  • 🚫 Limited vocabulary compared to other dictionaries
  • 🚫 Censored words and features

Power Thesaurus

From 3.1K App Store ratings

What we love

  • ⭐ Invaluable tool for everyone
  • 🚀 Must have
  • ⭐ Superior
  • ⭐ Synonyms
  • ⭐ Indispensable

Room to improve

  • 🔌 Could be better
  • 🐛 Crashes
  • 🐛 Crashes the second you tried to open it
  • 🐛 New updates cause crashes
  • 🐛 Crashes and won't open

Bugs and requests

WordBook (Universal)

Reported bugs

3 issues
  • Crashes and freezes, especially on newer devices
  • Compatibility issues with recent iOS versions
  • Anagram solver not working as expected

Requested features

5 requests
  • Dark mode option
  • More comprehensive vocabulary
  • Improved pronunciation and audio support
  • Regular updates and new features
  • Better optimization for iPad and split-screen use

Power Thesaurus

Reported bugs

4 issues
  • Login screen freezes
  • Incompatible with older devices
  • Paid account suddenly gone?
  • App still crashes after update

Requested features

5 requests
  • Separate favorites and new words/vocabulary
  • Flash card review mode with audio
  • Bookmark/favorite feature
  • Dark mode option
  • Advanced analytics dashboard

In-app purchases

None

WordBook (Universal)

No in-app purchases

2 purchases

Power Thesaurus

Subscriptions2
  • PRO Monthly$3.991 Month
  • PRO Annual$29.991 Year

Questions

Is WordBook (Universal) free?
WordBook (Universal) costs $2.99, with no in-app purchases.
Is Power Thesaurus free?
Power Thesaurus is free to download, with in-app purchases available.
Which has better reviews, WordBook (Universal) or Power Thesaurus?
Power Thesaurus is rated higher. WordBook (Universal) averages 4.7 out of 5 from 275 ratings, while Power Thesaurus averages 4.8 from 3.1K ratings.
Do WordBook (Universal) or Power Thesaurus have ads?
Power Thesaurus shows ads; WordBook (Universal) does not.
Which is updated more often, WordBook (Universal) or Power Thesaurus?
WordBook (Universal) ships an update every 4 months, and Power Thesaurus monthly. Most recently, WordBook (Universal) was updated on October 24, 2026 and Power Thesaurus on October 24, 2026.

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