Comparison

Dictionary.com 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

Dictionary.com

Access over 2 million trusted definitions and synonyms for English words. Enhance your vocabulary with daily new words, example sentences, and audio pronunciations. This app provides grammar tips and editorial content to deepen your understanding of the English language.

Highlights
  • 2 million+ definitions and synonyms
  • Word of the Day
  • Example sentences
  • Audio pronunciations
  • Grammar tips
  • Search history
Features
Currently charting
Read full description

Download the #1 free dictionary app! With more than 2 million trusted definitions and synonyms, this English dictionary and thesaurus app for iPhone is optimized for your mobile device. Improve your English vocabulary, whether you're just starting your learning journey or you're already a word wizard. Install the app for access to definitions and synonyms whenever and wherever you need them — no bulky books necessary. Flip to dark mode to give your eyes a break, or stick to the traditional set-up. In addition to the trusted reference content from Dictionary.com and Thesaurus.com, this education app includes: Word of the Day ► Learn a new word each day and expand your vocabulary. Example Sentences ► Browse real-world example sentences to see how words are used. Idioms ► Explore how words can gain new meanings. Rhymes ► Finish every verse. Audio Pronunciations ► Never mispronounce another word. Grammar ► Get grammar tips, word usage, and more to improve your writing. Editorial Articles ► Explore editorial content for features on words, the origins of the English language, and the nuances that make English so complicated and unique. Search History ► Customize your recently searched word list, and never forget the newest words you’ve learned. Dictionary Shuffle ► Think you know ALL the definitions? Prove it with Dictionary Shuffle, which chooses a word at random and brings you to the definition. A-Z Dictionary ► What’s more exciting than ... wait for it … browsing the Dictionary?! We’ve now made it even easier, with the A–Z Dictionary.

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

Dictionary.com4 screens
Power Thesaurus3 screens

Verdict

The call

Dictionary.com and Power Thesaurus both sit at 4.8 stars, but that hides the real split: 86% of Power Thesaurus's written reviews are positive against 26% of Dictionary.com's. Dictionary.com's advantage is ratings volume (328K vs 3K) and chart position (#111 vs unranked). On price, rating, update cadence and ads 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

Both are free to download. Dictionary.com sells 9 one-off in-app purchases and Power Thesaurus sells 2 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.8 for Dictionary.com against 4.8 for Power Thesaurus. That said, the two scores are not equally well evidenced: Dictionary.com has 328K ratings behind it against 3K, so its average is the more settled of the two. Written reviews are what separate them: 26% of Dictionary.com's written reviews are positive against 86% of Power Thesaurus's.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly monthly. The most recent releases landed on September 24, 2026 and September 22, 2026 respectively.

Scorecard3 real differences · 8 level
Dictionary.com versus Power Thesaurus: the parameters behind the verdict, then further details
ParameterDictionary.comPower Thesaurus
PriceFreeFree
Rating4.8 (328K ratings)4.8 (3K ratings)
Positive reviews25.8% of reviews85.7% of reviews — better
Number of ratings328K — better3K
Update frequencyMonthlyMonthly
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
Best chart rank#111 — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.015.1 — better
Further details — not scored
Size35 MB67 MB
Age rating12+4+
DeveloperCuriosity MediaRadyushin Pty Ltd

Customer experience

Dictionary.com

All ratings327,783 ratings
Positive95.5%
Neutral2.0%
Negative2.5%
Written reviews1,378 reviews
Positive25.8%
Neutral9.2%
Negative64.9%

Power Thesaurus

All ratings3,025 ratings
Positive95.1%
Neutral1.4%
Negative3.5%
Written reviews384 reviews
Positive85.7%
Neutral3.6%
Negative10.7%

User reviews

Dictionary.com

From 328K App Store ratings

What we love

  • 🚀 Robust dictionary and thesaurus
  • 🤓 Helpful resources like blogs and articles
  • 💡 Useful word games and puzzles
  • 👍 Easy to use and navigate
  • 🤩 Great for expanding vocabulary

Room to improve

  • 🐛 Inconsistent search results and missing definitions
  • 💸 Aggressive ads even after paid upgrades
  • 🤯 Frequent crashes and performance issues
  • 🤔 Confusing layout changes and UI issues
  • 🤷‍♀️ Paid features not always working as expected

Power Thesaurus

From 3K 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

Dictionary.com

Reported bugs

5 issues
  • Notifications not working as expected
  • Inconsistent behavior when tapping on words
  • Offline dictionary not downloading properly
  • Frequent crashes and freezes on various devices
  • Paid features not unlocking or resetting unexpectedly

Requested features

5 requests
  • Dedicated section to display all forms of a word
  • Ability to create and manage custom word lists
  • Improved offline mode with more functionality
  • Better integration with other productivity apps
  • More language support beyond just English

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

9 purchases

Dictionary.com

One-time9
  • Rhyming Dictionary$1.99
  • Grammar & Tips$1.99
  • Idioms & Phrases$1.99
Show 6 more
  • Example Sentences$2.99
  • Science Dictionary$2.99
  • Encyclopedia$2.99
  • Offline Dictionary$2.99
  • Remove Ads$2.99
  • Power Pack$5.99
2 purchases

Power Thesaurus

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

Questions

Is Dictionary.com free?
Dictionary.com is free to download, with in-app purchases available.
Is Power Thesaurus free?
Power Thesaurus is free to download, with in-app purchases available.
Which has better reviews, Dictionary.com or Power Thesaurus?
Dictionary.com and Power Thesaurus are both rated 4.8 out of 5 on the App Store, from 328K and 3K ratings respectively.
Do Dictionary.com or Power Thesaurus have ads?
Both Dictionary.com and Power Thesaurus show ads.
Which is updated more often, Dictionary.com or Power Thesaurus?
Dictionary.com ships an update monthly, and Power Thesaurus monthly. Most recently, Dictionary.com was updated on September 24, 2026 and Power Thesaurus on September 22, 2026.

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