Comparison

WordBook (Universal) vs Merriam

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

Merriam

Access America's most respected dictionary, updated with new words and meanings. This app offers offline access, voice search, daily vocabulary challenges, and a thesaurus. It's designed for English language reference, education, and vocabulary enhancement.

Highlights
  • Offline dictionary access
  • Voice search for words
  • Daily Word of the Day
  • Vocabulary word games
  • Integrated thesaurus
  • Audio pronunciations
Features
Read full description

Get America's most useful and respected dictionary, optimized for your iPhone, iPad, and Apple Watch. Continuously updated with the newest words and meanings, this is the premier iOS app for English language reference, education, and vocabulary building. Key Features: * Offline access: Complete access to definitions and synonyms whether or not you're connected * Voice Search: look up a word without having to spell it * Word of the Day: learn a new word every day * Word Games: fun, fast quizzes to test your vocabulary * Favorite Words and Search History: keep track of the words that are most important to you * Favorite Word Syncing Through iCloud: share your favorites between devices and on the Web * In-app purchase: an ad-free experience + access to Kids, Medical, and Legal dictionaries * For Tablets: browse the entire dictionary with a scrolling index * Apple Watch Extension: see the Word of the Day and find watch-sized definitions with voice search Expert Word Guidance: * Integrated Thesaurus: more than 200,000 word choices with examples of their use * Example Sentences: understand how a word is used in context * Audio Pronunciations: voiced by real English speakers, not text-to-speech robots Terms of Use: https://www.merriam-webster.com/terms-of-use

Screenshots

WordBook (Universal)4 screens
Merriam4 screens

Verdict

The call

The clearest difference is price: Merriam at Free against WordBook (Universal)'s $2.99. Merriam also leads on ratings volume (331K vs 275) and chart position (#51 vs unranked). WordBook (Universal)'s advantage is in-app purchases (none vs 4) and ads (none vs shown). On rating, review sentiment, update cadence 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

Merriam is free to download; WordBook (Universal) costs $2.99 up front. Merriam sells 4 in-app purchases, starting at $1.79 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 Merriam. That said, the two scores are not equally well evidenced: Merriam has 331K 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 83% of Merriam's.

UpkeepUpdate frequency

WordBook (Universal) ships an update every 4 months, Merriam every 3 months. Both last shipped on November 6, 2026.

Scorecard7 real differences · 4 level
WordBook (Universal) versus Merriam: the parameters behind the verdict, then further details
ParameterWordBook (Universal)Merriam
Price$2.99Free — better
Rating4.7 (275 ratings)4.8 (331K ratings) — better
Positive reviews87.6% of reviews — better83.2% of reviews
Number of ratings275331K — better
Update frequencyEvery 4 monthsEvery 3 months — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
Best chart rank—#51 — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Apple Watch — better
Requires iOS7.0 — better15.0
Further details — not scored
Size28 MB255 MB
Age rating9+12+
DeveloperTranCreative SoftwareMerriam-Webster, Inc.

Customer experience

WordBook (Universal)

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

Merriam

All ratings327,751 ratings
Positive96.7%
Neutral2.1%
Negative1.2%
Written reviews2,579 reviews
Positive83.2%
Neutral4.8%
Negative12.0%

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

Merriam

From 331K App Store ratings

What we love

  • 🚀 Easy to use
  • 👍 Comprehensive definitions
  • 👍 Helpful thesaurus
  • 🚀 Offline access
  • 👍 Word of the day feature

Room to improve

  • 🐛 Ads can be intrusive
  • 🐛 Difficulty closing ads
  • 🐛 Repetitive game questions
  • 🐛 Missing words in dictionary
  • 🐛 Unreasonable level progression in games

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

Merriam

Reported bugs

4 issues
  • App crashes when searching for certain words
  • Widget does not update daily word
  • Scribble feature is buggy
  • Inconsistent ad behavior

Requested features

5 requests
  • Add spelling correction suggestions
  • Improve word game timer and scoring
  • Expand etymology information
  • Add more languages beyond English
  • Improve widget functionality

In-app purchases

None

WordBook (Universal)

No in-app purchases

4 purchases

Merriam

Subscriptions4
  • Premium Monthly$1.791 Month
  • Remove Ads$2.991 Year
  • All References + Remove Ads7 Days trial$5.991 Year
Show 1 more
  • Premium Annual7 Days trial$9.991 Year

Questions

Is WordBook (Universal) free?
WordBook (Universal) costs $2.99, with no in-app purchases.
Is Merriam free?
Merriam is free to download, with in-app purchases available.
Which has better reviews, WordBook (Universal) or Merriam?
Merriam is rated higher. WordBook (Universal) averages 4.7 out of 5 from 275 ratings, while Merriam averages 4.8 from 331K ratings.
Do WordBook (Universal) or Merriam have ads?
Merriam shows ads; WordBook (Universal) does not.
Which is updated more often, WordBook (Universal) or Merriam?
WordBook (Universal) ships an update every 4 months, and Merriam every 3 months. Most recently, WordBook (Universal) was updated on November 6, 2026 and Merriam on November 6, 2026.

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