Comparison

Oxford Dictionary & Thesaurus 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

Oxford Dictionary & Thesaurus

Access a vast collection of dictionaries and thesauruses with definitions, pronunciations, and etymology. Features include offline access, advanced search options, and personalized word lists. Ideal for students, professionals, and word enthusiasts.

Highlights
  • 15 Oxford Dictionaries
  • Thesaurus integration
  • Audio pronunciations
  • Offline access
  • Camera search
  • Word of the Day
Features
Read full description

Trusted by millions of students, professionals, and language learners worldwide, Oxford Dictionary is built on content from Oxford Languages and gives you 18 dictionaries, over a million words, phrases, and definitions, plus translations between English and major languages, all in a single app. Whether you are preparing for exams, improving your writing, or expanding your vocabulary, Oxford Dictionary is your trusted language reference. ■ What can I use Oxford Dictionary for? • Find accurate word definitions in English, Spanish, French, and German • Check pronunciation • Discover English synonyms and antonyms • Learn word origins and etymology • Translate between English and major languages • Build vocabulary and improve writing • Use the dictionaries online and offline (offline with Premium) ■ How many dictionaries does Oxford Dictionary include? Oxford Dictionary includes 18 dictionaries: 5 monolingual (British English, American English, Spanish, French, and German) and 13 bilingual dictionaries pairing English with French, German, Spanish, Russian, Chinese, Italian, Hindi, Urdu, Portuguese, Japanese, Greek, Bulgarian, and Thai. ■ How do I find the meaning of a word? Search for any word in Oxford Dictionary to get trusted definitions, example usage, phrases, and word origins from Oxford Languages. ■ Does Oxford Dictionary work offline? Yes, with Premium. Download dictionaries to your device and search for words anytime, no internet connection needed. Ideal for travel, studying, or work. ■ Does Oxford Dictionary include a thesaurus? Yes. The built-in thesaurus gives you thousands of English synonyms and antonyms, helping you find the right word, avoid repetition, and improve your writing. With Premium, synonym lookups are unlimited. ■ Does Oxford Dictionary have audio pronunciation? Yes, with Premium. Recordings by native British and American English speakers help you speak with confidence, ideal for language learning and exam preparation. ■ Can I search for words even if I don't know the spelling? Yes. Use fuzzy search, wildcards (* and ?), autocomplete and auto-correction, voice search, camera search, and keyword lookup to find words quickly and easily. ■ Is Oxford Dictionary good for IELTS, TOEFL, SAT, or ACT preparation? Yes. Oxford Dictionary provides accurate definitions, example usage in context, and a broad vocabulary range for students preparing for major English proficiency exams worldwide. ■ How can I build my vocabulary with Oxford Dictionary? Save words to Favorites, organize them into folders and sync them across your devices, revisit Recent searches, and discover a new word every day with Word of the Day. ■ Should I use an AI chatbot instead of a dictionary? Students and professionals continue to rely on dictionaries for formal definitions and correct word usage. Oxford Dictionary provides definitions backed by Oxford Languages' rigorous editorial process, not AI-generated approximations. When accuracy matters, Oxford Dictionary remains the trusted reference. ■ Who is Oxford Dictionary for? Students, writers, professionals, academics, language learners, and word enthusiasts: anyone who needs a reliable multilingual dictionary at every level. ■ What do you get with Premium? • Offline mode and fast search • Audio pronunciation by native speakers • Unlimited synonym and antonym lookups • Ad-free experience ■ Why choose Oxford Dictionary? Oxford Dictionary combines the language expertise of Oxford Languages with powerful search, 18 dictionaries, and practical vocabulary tools, all in one app. Download Oxford Dictionary today. Website: https://mobisystems.com/oxford-dictionary Facebook: https://www.facebook.com/oxforddictionaryapp Instagram: https://www.instagram.com/oxford_dictionary_app TikTok: https://www.tiktok.com/@oxforddictionaryapp X: https://x.com/OxfordD_app Privacy Policy: https://mobisystems.com/privacy-policy Terms of Use: https://mobisystems.com/terms-of-use

About

Deep Dictionary

This app offers comprehensive English word definitions, synonyms, and related terms. It integrates with Urban Dictionary for slang, Wikipedia for deeper context, and YouTube for pronunciation guides. It's a multilingual tool for vocabulary building and translation.

Highlights
  • Comprehensive definitions
  • Thesaurus with related words
  • Urban Dictionary slang integration
  • Wikipedia content access
  • YouTube pronunciation guides
  • Multilingual support
Features
Read full description

Deep Dictionary is a powerful English dictionary designed to help you understand words, explore their meanings, and build your vocabulary. It 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

Oxford Dictionary & Thesaurus4 screens
Deep Dictionary4 screens

Verdict

The call

The clearest difference is in-app purchases: Deep Dictionary at none against Oxford Dictionary & Thesaurus's 13. Deep Dictionary also leads on review sentiment (78% vs 51%) and update cadence (every 6 days vs monthly). Oxford Dictionary & Thesaurus's advantage is ads (none vs shown) and ratings volume (29K vs 51). On price, rating and iOS requirement 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. Oxford Dictionary & Thesaurus sells 8 in-app purchases, starting at $2.99 per month. 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 — 4.6 for Oxford Dictionary & Thesaurus against 4.7 for Deep Dictionary. That said, the two scores are not equally well evidenced: Oxford Dictionary & Thesaurus has 29K ratings behind it against 51, so its average is the more settled of the two. Written reviews are what separate them: 51% of Oxford Dictionary & Thesaurus's written reviews are positive against 78% of Deep Dictionary's.

UpkeepUpdate frequency

Oxford Dictionary & Thesaurus ships an update monthly, Deep Dictionary every 6 days. The most recent releases landed on November 1, 2026 and October 30, 2026 respectively.

Scorecard8 real differences · 3 level
Oxford Dictionary & Thesaurus versus Deep Dictionary: the parameters behind the verdict, then further details
ParameterOxford Dictionary & ThesaurusDeep Dictionary
PriceFreeFree
Rating4.6 (29K ratings)4.7 (51 ratings) — better
Positive reviews51.2% of reviews77.8% of reviews — better
Number of ratings29K — better51
Update frequencyMonthlyEvery 6 days — better
AdsNo — betterYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesAd-supported — better
Best chart rank#98 — better—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.0 — better16.0
Further details — not scored
Size147 MB12 MB
Age rating4+12+
DeveloperMobiSystems, Inc.DEEPCO

Customer experience

Oxford Dictionary & Thesaurus

All ratings29,267 ratings
Positive91.1%
Neutral3.2%
Negative5.7%
Written reviews1,115 reviews
Positive51.2%
Neutral8.3%
Negative40.5%

Deep Dictionary

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

Bugs and requests

Oxford Dictionary & Thesaurus

Reported bugs

4 issues
  • Favorites folder disappearing after device restart
  • Inconsistent behavior when looking up words
  • Frequent crashes and freezes
  • Inability to restore premium purchases on new devices

Requested features

6 requests
  • Improved formatting and typography for definitions
  • Better organization of features and information
  • More advanced search and filtering options
  • Ability to sync favorites across devices
  • More challenging and interesting 'word of the day' selections
Show 1 more
  • Improved offline dictionary with more comprehensive coverage

Deep Dictionary

Not enough reviews yet to summarise bugs or requests.

In-app purchases

8 purchases

Oxford Dictionary & Thesaurus

Subscriptions6
  • Monthly Subscription ODE1 Month trial$2.991 Month
  • Monthly Subscription1 Month trial$2.991 Month
  • Oxford Dictionary Premium2 variants$4.997 Days
Show 3 more
  • ODE Annual Subscription Promo$9.991 Year
  • Annual Subscription ODE$19.991 Year
  • Oxford Dictionary Premium3 Days trial4 variants$39.991 Year
One-time2
  • Oxford Dictionary of English$4.99
  • Oxford Dictionary of English$9.99
None

Deep Dictionary

No in-app purchases

Questions

Is Oxford Dictionary & Thesaurus free?
Oxford Dictionary & Thesaurus 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, Oxford Dictionary & Thesaurus or Deep Dictionary?
Deep Dictionary is rated higher. Oxford Dictionary & Thesaurus averages 4.6 out of 5 from 29K ratings, while Deep Dictionary averages 4.7 from 51 ratings.
Do Oxford Dictionary & Thesaurus or Deep Dictionary have ads?
Deep Dictionary shows ads; Oxford Dictionary & Thesaurus does not.
Which is updated more often, Oxford Dictionary & Thesaurus or Deep Dictionary?
Oxford Dictionary & Thesaurus ships an update monthly, and Deep Dictionary every 6 days. Most recently, Oxford Dictionary & Thesaurus was updated on November 1, 2026 and Deep Dictionary on October 30, 2026.

Other comparisons