Thesaurus S vs OneLook Thesaurus
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Thesaurus S
This free reference app helps you find synonyms and related words from a large database. Its simple interface and voice input support make it easy to discover new expressions and enhance your vocabulary.
- Extensive word database (>90,000 candidates)
- Simple and intuitive operability
- Voice input support
- Paraphrase finding
- Vocabulary strengthening
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We have created a free "Thesaurus" that accurately classifies and displays words with the same concept as "input words" from more than 90,000 candidates. With "simple operability" that eliminates extra elements, you can select the next candidate from the list and arrive at the "desired expression". With voice input support, it is possible to easily find "appropriate words". Feel free to use the "Thesaurus", which is ideal for "people who want to find paraphrases of monotonous sentences", "people who can't think of good phrases or images", and "strengthening vocabulary".
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/
Screenshots
Verdict
The clearest difference is rating: OneLook Thesaurus at 3.9 against Thesaurus S's 1.0. OneLook Thesaurus also leads on ads (none vs shown) and ratings volume (21 vs 1). Thesaurus S's advantage is in-app purchases (none vs 2) and review sentiment (50% vs 33%). On price, 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
Both are free to download. OneLook Thesaurus sells 2 in-app purchases, starting at $0.99 per month. Thesaurus S asks for nothing beyond the download.
OneLook Thesaurus holds the better App Store score, 3.9 against 1.0. That said, the two scores are not equally well evidenced: OneLook Thesaurus has 21 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 50% of Thesaurus S's written reviews are positive against 33% of OneLook Thesaurus's, so the app with the better star average is not the one people write more warmly about.
Both ship on a similar rhythm, roughly monthly. The most recent releases landed on August 7, 2026 and September 10, 2026 respectively.
| Parameter | Thesaurus S | OneLook Thesaurus |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (1 ratings) | 3.9 (21 ratings) — better |
| Positive reviews | 50.0% of reviews — better | 33.3% of reviews |
| Number of ratings | 1 | 21 — better |
| Update frequency | Monthly | Monthly |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Monetization | Ad-supported — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 13.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 96 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | E-ONLINESERVICE | Datamuse Corporation |
Customer experience
Thesaurus S
OneLook Thesaurus
In-app purchases
Thesaurus S
No in-app purchases
OneLook Thesaurus
- Standard14 Days trial$0.991 Month
- Standard Yearly14 Days trial$9.991 Year
Questions
Is Thesaurus S free?
Is OneLook Thesaurus free?
Which has better reviews, Thesaurus S or OneLook Thesaurus?
Do Thesaurus S or OneLook Thesaurus have ads?
Which is updated more often, Thesaurus S or OneLook Thesaurus?
Other comparisons
