Comparison

Dictionary.com vs Deep Dictionary

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

Deep Dictionary

Access definitions from various sources like Wikipedia and Urban Dictionary, with multilingual support and pronunciation guides. Enhance your vocabulary with synonyms, related words, and real-life usage examples.

Highlights
  • Multilingual definitions
  • Urban Dictionary slang integration
  • Wikipedia content access
  • Pronunciation guides and usage examples
  • Comprehensive thesaurus
  • Images and contextual phrases
Features
Read full description

Deep Dictionary is like Wikipedia, Urban Dictionary, Oxford English Dictionary, and Youglish all in one App! Deep Dictionary supports multiple languages! Get definitions in Japanese, Chinese, Russian, German, Spanish, and French alongside English. The best multilingual dictionary for learning and translation—perfect for English-Japanese dictionary, English-Chinese dictionary, English-Russian dictionary, English-German dictionary, English-Spanish dictionary, and English-French dictionary! With direct integration with Urban Dictionary, you'll never miss the latest slang and expressions. Our app ensures you stay updated with contemporary language trends, capturing the essence of the latest terms just like Urban Dictionary. Like YouGlish, our app offers pronunciation guides and real-life usage examples through integrated YouTube clips. Need scientific definitions? Our app connects you to comprehensive Wikipedia entries. For dictionary definitions, Deep Dictionary includes images and contextual phrases to make vocabulary building a breeze. Download now to enhance your vocabulary with the best of both traditional and contemporary language tools. Download the Deep Dictionary app for free and start your English learning right away. ## KEY FEATURES: ## Thesaurus: Deep Dictionary is more than just a dictionary—it's a comprehensive thesaurus at your fingertips. Unlike traditional thesaurus apps that focus solely on synonyms and antonyms, Deep Dictionary broadens your vocabulary with a wide range of related words that are more practical for everyday use. Whether you’re writing, studying, or simply want to expand your vocabulary, our thesaurus feature offers tools that go beyond just finding synonyms and antonyms. Discover new words and enhance your language skills with Deep Dictionary’s unique approach to the thesaurus! ## Wikipedia: Deep Dictionary includes direct references to authentic Wikipedia content, wrapped in an improved, user-friendly interface. Now you can access reliable Wikipedia information. Whether you’re a student, a professional, or simply curious, Deep Dictionary provides a seamless Wikipedia-like experience for all things related to words and their meanings. ## Reliable Sources: Looking for an alternative to Dictionary.com? Deep Dictionary provides everything you need, from detailed definitions to pronunciation guides, much like Dictionary.com. With features similar to Dictionary.com, Deep Dictionary helps you explore the English language with ease. If you love Dictionary.com, you'll find Deep Dictionary an equally valuable resource for learning and mastering English. And what's better? Deep Dictionary doesn't have Ads to interrupt your learning experience. ## Pick Up Slangs like Urban Dictionary: Stay updated with the latest trends in language. Our direct integration with Urban Dictionary ensures you’re never out of the loop with contemporary and evolving terms. When you prefer, jump over to the Urban Dictionary website to explore more with one simple tap! ## Best Youglish Alternative on iOS: iPhone users have long sought a good YouGlish substitute, and now you've found it! Deep Dictionary offers pronunciation guides and real-life usage examples. ## Academic: Inspired by the Oxford English Dictionary, Deep Dictionary offers a wealth of detailed definitions and historical contexts, just like the Oxford English Dictionary. Dive into the depths of the English language with a dictionary that mirrors the comprehensive nature of the Oxford English Dictionary. Whether you’re studying or just curious about words, our app provides the insights you need, much like the Oxford English Dictionary.

Screenshots

Dictionary.com4 screens
Deep Dictionary4 screens

Verdict

The call

Dictionary.com and Deep Dictionary both sit at 4.8 stars, but that hides the real split: 78% of Deep Dictionary's written reviews are positive against 26% of Dictionary.com's. Deep Dictionary also leads on in-app purchases (none vs 9) and update cadence (every 5 days vs every 3 weeks). Dictionary.com's advantage is ratings volume (328K vs 51) and chart position (#118 vs unranked). On price, rating, 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

Both are free to download. Dictionary.com sells 9 one-off in-app purchases. Deep Dictionary asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.8 for Dictionary.com against 4.7 for Deep Dictionary. That said, the two scores are not equally well evidenced: Dictionary.com has 328K ratings behind it against 51, 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 78% of Deep Dictionary's.

UpkeepUpdate frequency

Dictionary.com ships an update every 3 weeks, Deep Dictionary every 5 days. The most recent releases landed on September 29, 2026 and September 27, 2026 respectively.

Scorecard6 real differences · 5 level
Dictionary.com versus Deep Dictionary: the parameters behind the verdict, then further details
ParameterDictionary.comDeep Dictionary
PriceFreeFree
Rating4.8 (328K ratings) — better4.7 (51 ratings)
Positive reviews25.7% of reviews77.8% of reviews — better
Number of ratings328K — better51
Update frequencyEvery 3 weeksEvery 5 days — better
AdsYesYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesAd-supported — better
Best chart rank#118 — better—
DevicesiPhone, iPad — betteriPhone
Requires iOS16.016.0
Further details — not scored
Size35 MB13 MB
Age rating12+12+
DeveloperCuriosity MediaDEEPCO

Customer experience

Dictionary.com

All ratings327,786 ratings
Positive95.5%
Neutral2.0%
Negative2.5%
Written reviews1,385 reviews
Positive25.7%
Neutral9.3%
Negative65.0%

Deep Dictionary

All ratings51 ratings
Positive92.2%
Neutral3.9%
Negative3.9%
Written reviews9 reviews
Positive77.8%
Neutral0.0%
Negative22.2%

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

Deep Dictionary

Not enough reviews yet to summarise bugs or requests.

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
None

Deep Dictionary

No in-app purchases

Questions

Is Dictionary.com free?
Dictionary.com is free to download, with in-app purchases available.
Is Deep Dictionary free?
Deep Dictionary is free to download, with no in-app purchases.
Which has better reviews, Dictionary.com or Deep Dictionary?
Dictionary.com is rated higher. Dictionary.com averages 4.8 out of 5 from 328K ratings, while Deep Dictionary averages 4.7 from 51 ratings.
Do Dictionary.com or Deep Dictionary have ads?
Both Dictionary.com and Deep Dictionary show ads.
Which is updated more often, Dictionary.com or Deep Dictionary?
Dictionary.com ships an update every 3 weeks, and Deep Dictionary every 5 days. Most recently, Dictionary.com was updated on September 29, 2026 and Deep Dictionary on September 27, 2026.

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