# Companion Thesaurus — UniDict® Powered

> Comprehensive offline thesaurus with synonyms, antonyms, and advanced search. (iPhone/iPad app by Enfour, Inc..)

- Source: https://appshunter.io/ios/app/companion-thesaurus/id316182014 (this page in markdown: same URL + `.md`)
- Developer: [Enfour, Inc.](https://appshunter.io/developer/284965604)
- Category: Reference, Education
- Price: $1.99
- Rating: 5.00/5 from 11 App Store ratings · 5 written reviews indexed
- Age rating: 9+
- Requires: iOS 12.0 · 73 MB
- Languages: American English, Arabic, Bangla, Bosnian, Burmese, Khmer, Catalan, Cebuano, Croatian, Czech and 44 more
- Released: 2009-05-22
- Data updated: 2026-09-08
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/companion-thesaurus/id316182014/reviews.md

## What is Companion Thesaurus?

A complete thesaurus application with over 145,000 headwords -each with Synonyms, Antonyms plus lots of hypernyms.

This will fill all your thesaurus needs:
● real-time progressive look-up 
● wildcard searches for unknown spellings and quizzes
● Scrolling index overview
● partial and wildcard searches
● Hyperlinks from all entries
● Round-trip links out to supported dictionaries *
● bookmarks with notations 
● automatic history
● AI boosted anagram generator
● 3D Touch support
● DarkMode support
● iPhone 17 & iOS26 support
● iPad "Fast App Switching" (Multitasking)
● iPad Pro multi-screen and Drag & Drop
● Support for iPhones, iPads, iPods and macOS
● complete offline use - no internet connection is required
_______________________

We recommend this to all users of Enfour's dictionary applications running on UniDict® Engine.

This application links to applications running on UniDict® Engine -tap on a headword to invoke a search.
Link out to "Companion Thesaurus" just by tapping on any headword.
(Cross-application links support 'round-trip' via the "Back" button.)
_______________________


Thesaurus data from WordNet® 2.1 from Princeton University's Cognitive Science Laboratory.
(the same as "Thesaurus App", "AED" and "WordBook" -only with much more functionality)
_______________________

Running on Enfour's acclaimed "UniDict® Engine".
Links work with all "Unidict Engine" English dictionary titles
_______________________

## Key features

- 145,000+ headwords
- Synonyms, antonyms, hypernyms
- Real-time progressive look-up
- Wildcard and partial searches
- Hyperlinked entries
- Offline use
- Bookmarks and history

## Recent user reviews (5 of 5)

All indexed reviews: https://appshunter.io/ios/app/companion-thesaurus/id316182014/reviews.md

### 5/5 — Great App

*2024-02-12*

In addition to companion synoyns, 
for the price, you simply can't go wrong..

It's great to have it directly on your manc, rather than searching online for the word

### 5/5 — 日本語

*2012-10-13*

日本語で英英の類語辞典で珍しい。

### 5/5 — great app!

*2011-10-10*

i love it!, great app!

### 5/5 — Love it!

*2011-02-02*

Perfect and easy to use.

### 4/5 — Very good

*2010-10-24*

...for those that need other words than usual.

## Frequently asked questions about Companion Thesaurus

### What is Companion Thesaurus?

Companion Thesaurus is a comprehensive offline thesaurus application featuring over 145,000 headwords with synonyms, antonyms, and hypernyms. It offers advanced search capabilities and integrates with other UniDict® powered dictionary applications.

### How much does Companion Thesaurus cost?

Companion Thesaurus is a paid application priced at $1.99. There are no in-app purchases or advertisements associated with this application.

### Does Companion Thesaurus require an internet connection?

No, Companion Thesaurus offers complete offline use. An internet connection is not required to access its extensive thesaurus data and features.

### What devices are supported by Companion Thesaurus?

Companion Thesaurus supports a wide range of Apple devices, including iPhones, iPads, iPods, and macOS. It is designed to work seamlessly across these platforms.

### How often is Companion Thesaurus updated?

The latest version of Companion Thesaurus is 16.1, last updated on February 25, 2026. Updates typically focus on enhancing functionality and ensuring compatibility with the latest operating systems.

### What is the age rating for Companion Thesaurus?

Companion Thesaurus has an age rating of 9+. This indicates it is suitable for users aged 9 and above, offering educational and reference content.

### Can I link Companion Thesaurus to other dictionaries?

Yes, Companion Thesaurus supports round-trip links to supported dictionaries running on Enfour's UniDict® Engine. Tapping on a headword can invoke a search in a linked dictionary.

### What makes Companion Thesaurus different from other thesaurus apps?

Companion Thesaurus distinguishes itself with over 145,000 headwords, advanced features like wildcard searches and an AI-boosted anagram generator, and robust offline functionality. It also offers seamless integration with other UniDict® powered applications.

## Version history (last 5 releases)

### 17.0 — 2026-07-14

Updates Bookmark sync and backup.
Add support for Anki.

### 16.1 — 2026-02-25

Better support for iOS26

### 16.0.2 — 2025-09-22

A fix for search on conjugations.

### 16.0 — 2025-06-26

Keeping up to date with the OS

### 15.1 — 2024-03-03

Add import and restore of Bookmarks from iCloud Drive.

## Apps similar to Companion Thesaurus

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Dictionary and Thesaurus Pro](https://appshunter.io/ios/app/dictionary-and-thesaurus-pro/id492085918) | 4.9 (2,560) | $9.99 | Reference |
| [Power Thesaurus](https://appshunter.io/ios/app/power-thesaurus/id967211375) | 4.8 (3,025) | Free | Reference |
| [Terminology](https://appshunter.io/ios/app/terminology/id687798859) | 4.7 (1,080) | Free | Reference |
| [Oxford Dictionary & Thesaurus](https://appshunter.io/ios/app/oxford-dictionary-and-thesaurus/id978674211) | 4.6 (28,630) | Free | Reference |
| [Dictionary.](https://appshunter.io/ios/app/dictionary/id379450383) | 4.8 (14,555) | Free | Reference |
| [Roget's II: New Thesaurus](https://appshunter.io/ios/app/rogets-ii-new-thesaurus/id286861782) | 4.7 (360) | $4.99 | Reference |

## More apps by Enfour, Inc.

- [American Heritage® Dictionary](https://appshunter.io/ios/app/american-heritage-dictionary/id284965601)
- [Wall Street Words](https://appshunter.io/ios/app/wall-street-words/id284967941)
- [American Heritage® Desk](https://appshunter.io/ios/app/american-heritage-desk/id286269540)
- [Roget's II: New Thesaurus](https://appshunter.io/ios/app/rogets-ii-new-thesaurus/id286861782)
- [ロングマン英和辞書](https://appshunter.io/ios/app/id289569759)
- [100 Words Everyone Confuses and Misuses](https://appshunter.io/ios/app/100-words-everyone-confuses-and-misuses/id293782249)

All apps by Enfour, Inc.: https://appshunter.io/developer/284965604

## Related topics

[onelook thesaurus](https://appshunter.io/ios/topics/onelook-thesaurus)

---

*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-08.*