OneLook Thesaurus vs Deep Dictionary
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
OneLook Thesaurus
This app helps writers find the perfect word or phrase quickly. It offers advanced search features, custom keyboard integration, and speech input for effortless word discovery. Ideal for creative writing, word games, and expanding vocabulary.
- Custom keyboard integration
- Speech input for word description
- Synonyms, similar words, associated words
- Rhymes, quotes, and lyrics
- Word game helpers (crosswords, Wordle)
- Word and Place-of-the-Day
- Ad-free experience
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Subscription required. Enjoy your first two weeks free! Internet access required. Ad-free. No trackers or personal data collection. Accelerate your search for meaning! OneLook Thesaurus helps every kind of writer find every kind of word and phrase, and the new iOS app does it faster and better than ever. Even if you’re already a fan of the free website, here are 10 reasons you’ll love this new app: * Fast interface for word lookups tailored to your iPhone, iPad, or Mac. * Custom keyboard integration so that you can use OneLook wherever you write * Speech input interface: simply describe a word out loud (“the feeling of strong desire to travel”) and get back the word you’re looking for (“wanderlust”) * Nine powerful lookups baked into one potent brainstorming tool: Besides synonyms and similar words, you’ll also find three memory-jogging features you won’t find on the website called “Associated”, “Describe”, and “Complete”; as well as rhymes, quotes, lyrics, and other niceties to spice up your poetry and prose. * Helpers for crosswords, Wordle, and other word games * Stimulating new Word-of-the-day and Place-of-the-Day features * Ad-free access to the OneLook website for finding word definitions * Use our most advanced reverse dictionary algorithms, and new sorting options, before they become available on the website * Support our ongoing development of OneLook Thesaurus Subscription required. Enjoy your first two weeks free! Internet access required. Ad-free. No trackers or personal data collection. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
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.
- Multilingual definitions
- Urban Dictionary slang integration
- Wikipedia content access
- Pronunciation guides and usage examples
- Comprehensive thesaurus
- Images and contextual phrases
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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
Verdict
The clearest difference is review sentiment: Deep Dictionary at 78% against OneLook Thesaurus's 33%. Deep Dictionary also leads on rating (4.7 vs 3.9) and in-app purchases (none vs 2). OneLook Thesaurus's advantage is ads (none vs shown) and device support (4 vs 1). On price, ratings volume 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
Both are free to download. OneLook Thesaurus sells 2 in-app purchases, starting at $0.99 per month. Deep Dictionary asks for nothing beyond the download.
Deep Dictionary holds the better App Store score, 4.7 against 3.9. Both are backed by a comparable volume of ratings — 21 and 51 respectively. Written reviews point the same way: 33% of OneLook Thesaurus's written reviews are positive against 78% of Deep Dictionary's.
OneLook Thesaurus ships an update monthly, Deep Dictionary every 5 days. The most recent releases landed on September 28, 2026 and September 27, 2026 respectively.
| Parameter | OneLook Thesaurus | Deep Dictionary |
|---|---|---|
| Price | Free | Free |
| Rating | 3.9 (21 ratings) | 4.7 (51 ratings) — better |
| Positive reviews | 33.3% of reviews | 77.8% of reviews — better |
| Number of ratings | 21 | 51 — better |
| Update frequency | Monthly | Every 5 days — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Ad-supported — better |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone |
| Requires iOS | 15.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 7 MB | 13 MB |
| Age rating | 4+ | 12+ |
| Developer | Datamuse Corporation | DEEPCO |
Customer experience
OneLook Thesaurus
Deep Dictionary
In-app purchases
OneLook Thesaurus
- Standard14 Days trial$0.991 Month
- Standard Yearly14 Days trial$9.991 Year
Deep Dictionary
No in-app purchases
Questions
Is OneLook Thesaurus free?
Is Deep Dictionary free?
Which has better reviews, OneLook Thesaurus or Deep Dictionary?
Do OneLook Thesaurus or Deep Dictionary have ads?
Which is updated more often, OneLook Thesaurus or Deep Dictionary?
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