# Thesaurus S vs OneLook Thesaurus

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.

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.

## The numbers

| Metric | Thesaurus S | OneLook Thesaurus |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/thesaurus-s/id1592295205/reviews) | **[3.9 (21 ratings)](https://appshunter.io/ios/app/onelook-thesaurus/id1615071061/reviews)** |
| Number of ratings | 1 | **21** |
| Positive reviews | **50.0% of reviews** | 33.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Monthly | Monthly |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 96 MB | 7 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [E-ONLINESERVICE](https://appshunter.io/developer/1592295207) | [Datamuse Corporation](https://appshunter.io/developer/493493805) |

## What reviewers say

### Thesaurus S

[App page](https://appshunter.io/ios/app/thesaurus-s/id1592295205)

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.

**Highlights:** Extensive word database (>90,000 candidates), Simple and intuitive operability, Voice input support, Paraphrase finding, Vocabulary strengthening

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### OneLook Thesaurus

[App page](https://appshunter.io/ios/app/onelook-thesaurus/id1615071061)

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.

**Highlights:** 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

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Standard | $0.99 | per month |
| Standard Yearly | $9.99 | per year |


## Frequently asked questions

### Is Thesaurus S free?

Thesaurus S is free to download, with no in-app purchases.

### Is OneLook Thesaurus free?

OneLook Thesaurus is free to download, with in-app purchases available.

### Which has better reviews, Thesaurus S or OneLook Thesaurus?

OneLook Thesaurus is rated higher. Thesaurus S averages 1.0 out of 5 from 1 ratings, while OneLook Thesaurus averages 3.9 from 21 ratings.

### Do Thesaurus S or OneLook Thesaurus have ads?

Thesaurus S shows ads; OneLook Thesaurus does not.

### Which is updated more often, Thesaurus S or OneLook Thesaurus?

Thesaurus S ships an update monthly, and OneLook Thesaurus monthly. Most recently, Thesaurus S was updated on August 7, 2026 and OneLook Thesaurus on September 10, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*