Best Thesaurus App

247+ iOS apps curated and reviewed

4.0 avg rating
17 free apps
Updated August 2026

With an average user rating of 4.0★, the thesaurus app category is one of the App Store's strongest. Browse all 247+ apps we track, sorted so the most loved ones surface first.

Compare top Thesaurus App (August 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Dictionary.com: English WordsDictionary.com: English WordsFree4.8★ (328K)YesNoAug 2026
2Power ThesaurusPower ThesaurusFree4.8★ (3K)YesYesAug 2026
3Thesaurus App - FreeThesaurus App - FreeFree1.9★ (7)NoYesAug 2026
4Oxford Dictionary & ThesaurusOxford Dictionary & ThesaurusFree4.6★ (29K)NoYesAug 2026
5Merriam-Webster DictionaryMerriam-Webster DictionaryFree4.8★ (324K)YesYesAug 2026
6Thesaurus dictionary- WordloopThesaurus dictionary- WordloopFree4.5★ (282)NoYesAug 2026
7Thesaurus AppThesaurus App$0.991.0★ (4)NoNoAug 2026
8Word HippoWord HippoFree4.9★ (14K)YesYesAug 2026

Top Picks for Thesaurus App

Dictionary.com: English Words#1

Dictionary.com: English Words by Curiosity Media

Dictionary, Thesaurus, Vocab
Editor's Choice
🔍 Reference
4.8😐(328K ratings)
FreeAdsIn-App Purchases
Dictionary.com: English Words screenshot 1
Dictionary.com: English Words screenshot 2
Dictionary.com: English Words screenshot 3
Dictionary.com: English Words screenshot 4
Dictionary.com: English Words screenshot 5

Access over 2 million trusted definitions and synonyms for English words. Enhance your vocabulary with daily new words, example sentences, and audio pronunciations. This app provides grammar tips and editorial content to deepen your understanding of the English language.

What We Love

  • 🚀 Robust dictionary and thesaurus
  • 🤓 Helpful resources like blogs and articles
  • 💡 Useful word games and puzzles
  • 👍 Easy to use and navigate

Room to Improve

  • 🐛 Inconsistent search results and missing definitions
  • 💸 Aggressive ads even after paid upgrades
  • 🤯 Frequent crashes and performance issues
Power Thesaurus#2

Power Thesaurus by Radyushin Pty Ltd

Comprehensive. Fast. Reliable.
Strong Contender
🔍 Reference
4.8😊(3K ratings)
FreeAdsIn-App Purchases
Power Thesaurus screenshot 1
Power Thesaurus screenshot 2
Power Thesaurus screenshot 3

Find accurate synonyms, antonyms, definitions, and related words with this comprehensive and fast thesaurus. Designed for writers, students, and professionals, it offers intuitive navigation and smart filters to help you express ideas clearly and confidently.

What We Love

  • ⭐ Invaluable tool for everyone
  • 🚀 Must have
  • ⭐ Superior
  • ⭐ Synonyms

Room to Improve

  • 🔌 Could be better
  • 🐛 Crashes
  • 🐛 Crashes the second you tried to open it
Thesaurus App - Free#3

Thesaurus App - Free by Piet Jonas

Worth Considering
🔍 Reference
1.9(7 ratings)
FreeIn-App Purchases
Thesaurus App - Free screenshot 1
Thesaurus App - Free screenshot 2
Thesaurus App - Free screenshot 3
Thesaurus App - Free screenshot 4
Thesaurus App - Free screenshot 5

Instantly find synonyms for any word. Access antonyms, related terms, and user suggestions for a comprehensive vocabulary experience. Easily perform new searches by tapping on results and review your search history.

More Thesaurus App apps to explore

4
Oxford Dictionary & Thesaurus
Oxford Dictionary & Thesaurus
Oxford Dictionary & Thesaurus
Etymology & Offline Vocabulary
Free

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.

15 Oxford DictionariesThesaurus integrationAudio pronunciations
🔍 Reference
(29K)
free with in-app purchases
5
Merriam-Webster Dictionary
Merriam-Webster Dictionary
Merriam-Webster Dictionary
by Merriam-Webster, Inc.
Free

Access America's most respected dictionary, updated with new words and meanings. This app offers offline access, voice search, daily vocabulary challenges, and a thesaurus. It's designed for English language reference, education, and vocabulary enhancement.

Offline dictionary accessVoice search for wordsDaily Word of the Day
🔍 Reference
(324K)
free with in-app purchases
6
Thesaurus dictionary- Wordloop
Thesaurus dictionary- Wordloop
Thesaurus dictionary- Wordloop
Synonyms power up vocabulary
Free

Enhance your writing by accessing a thesaurus directly from your keyboard. Select any word in any app to instantly see synonyms and related terms, helping you expand your vocabulary and refine your text. This ad-free tool offers a simple and effective way to improve your communication.

Keyboard thesaurus integrationInstant word suggestionsSynonym lookup in any app
🔍 Reference
(282)
free with in-app purchases
7
Thesaurus App
Thesaurus App
Thesaurus App
by Piet Jonas
$0.99

Instantly find synonyms for any word. Explore antonyms, related terms, and user-suggested words. Tap results for new searches and access your search history.

Synonym retrievalAntonym searchRelated terms
🔍 Reference
(4)
free
8
Word Hippo
Word Hippo
Word Hippo
Thesaurus and Word Reference
Free

This app offers a comprehensive suite of word tools, including an advanced thesaurus for synonyms and antonyms, example sentences, rhyming words, and word type identification. It also features word finders for games, definitions, and translations into numerous languages.

Advanced thesaurus with synonyms and antonymsExample sentences for word usageRhyming word finder
🔍 Reference
(14K)
free with in-app purchases
9
Pocket Thesaurus
Pocket Thesaurus
Pocket Thesaurus
The Ultimate Offline Thesaurus
Free

Expand your vocabulary and master the English language with this offline thesaurus. Quickly find synonyms and antonyms, explore word definitions, and enhance your writing and communication skills. Features include daily word challenges and advanced search options.

Extensive offline access to 90,000+ wordsFast and efficient synonym/antonym searchWord of the Day/Week from GRE list
🔍 Reference
(380)
free with in-app purchases
10
Thesaurus Free
Thesaurus Free
Thesaurus Free
by rakudoor
Free

An offline English thesaurus and dictionary offering over 270,000 definitions, synonyms, and antonyms. It includes example sentences, pronunciation, and a unique visual view to explore word connections. Access most content without an internet connection.

Offline English Dictionary and Thesaurus270,000+ definitions, synonyms, antonyms100,000+ example sentences
🔍 Reference
(3)
free
11
Thesaurus S
Thesaurus S
Thesaurus S
Simple synonym app
Free

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 operabilityVoice input support
🔍 Reference
(1)
ad-supported
12
Roget's II: New Thesaurus
Roget's II: New Thesaurus
Roget's II: New Thesaurus
Synonyms & Antonyms by UniDict
$4.99

Access a comprehensive English thesaurus with millions of synonyms and related terms. Enhance your vocabulary and express yourself more effectively with this powerful reference tool, featuring advanced search and offline capabilities.

Full text of Roget's II: The New ThesaurusMillions of synonyms and related termsReal-time progressive look-up
🔍 Reference
(358)
paid
13
TheSaurus - Interactive Visual Thesaurus
TheSaurus - Interactive Visual Thesaurus
TheSaurus - Interactive Visual Thesaurus
by Shadanan Sharma
Free

Explore word relationships through an interactive visual graph. See synonyms and definitions presented as interconnected nodes, allowing for deeper understanding of language. Expand the graph by tapping on nodes to reveal more connections and meanings.

Interactive word graph visualizationSynonym and definition displayNode definitions on tap
📚 Education
(9)
free
14
Dictionary & Translator
Dictionary & Translator
Dictionary & Translator
Learn and Translate Languages
Free

Access trusted definitions, thesaurus, and pronunciations for numerous languages. Translate text and images offline or online, and enhance your learning with vocabulary challenges and grammar checking.

Offline dictionary and thesaurusCross-cultural text and image translationVocabulary challenges and grammar checking
📚 Education
(13K)
free with in-app purchases
15
Interactive Thesaurus
Interactive Thesaurus
Interactive Thesaurus
Visual Dictionary & Thesaurus
$2.99

Explore word meanings and relationships with this smart English thesaurus. It helps you find suitable words, expand your vocabulary, and improve grammar through an intuitive interface with semantic relations and color-coded parts of speech. Offline access and sharing options are included.

200,000+ English words and definitionsVisual semantic relations between wordsColor coding for parts of speech
🔍 Reference
(758)
paid
16
Thesaurus Keyboard - Synonyms
Thesaurus Keyboard - Synonyms
Thesaurus Keyboard - Synonyms
Improve Your Vocab and Writing
Free

Enhance your vocabulary and writing with a powerful keyboard extension that provides instant access to synonyms and AI-powered word discovery. Features an intuitive interface, beautiful dark mode, and seamless integration with your favorite apps.

Intuitive thesaurus keyboard extensionAI-powered word discoverySeamless integration with other apps
📊 Productivity
(13)
free with in-app purchases
17
Vokably
Vokably
Vokably
AI Vocabulary Builder
Free
📚 Education
(0)
18
Thesaurus: Synonym Keyboard
Thesaurus: Synonym Keyboard
Thesaurus: Synonym Keyboard
Synonyms as you type
Free
📊 Productivity
(0)
19
Dictionary.
Dictionary.
Dictionary.
by TheFreeDictionary.com
Free

Access a comprehensive dictionary, thesaurus, and translation tool with millions of definitions and synonyms. Explore specialty dictionaries, learn new words daily, and play word games. This app offers offline access and integrates seamlessly with other applications.

Offline dictionary and thesaurusMillions of definitions and synonymsWord of the Day and Idiom of the Day
🔍 Reference
(15K)
free with in-app purchases
20
English Dictionary *
English Dictionary *
English Dictionary *
Thesaurus and Vocabulary words
Free

Enhance your English vocabulary with a comprehensive offline dictionary and thesaurus. Access over 500,000 words, their meanings, synonyms, antonyms, and pronunciations. Perfect for students and professionals to improve language skills anytime, anywhere.

Offline word searchSynonyms and antonymsWord definitions
🔍 Reference
(1.2K)
subscription

FAQ about Thesaurus App

What is the best thesaurus app for iPhone?
Dictionary.com: English Words tops our thesaurus app ranking as of August 2026, with a 4.8-star average from 328K App Store ratings, and it's free to download.
Yes — 17 of the top thesaurus app we rank are free to download, including Dictionary.com: English Words and Power Thesaurus.
Dictionary.com: English Words shows ads and has no in-app purchases, according to its App Store listing as of August 2026.
We track 247+ thesaurus app on the iOS App Store as of August 2026, ranked by rating, recency, and analysis of real user reviews.
This app serves as a comprehensive English dictionary and thesaurus, offering over 2 million trusted definitions and synonyms. It aims to help users improve their English vocabulary, understanding, and writing skills through various features.
Key features include access to millions of definitions and synonyms, a 'Word of the Day' to expand vocabulary, example sentences to show word usage, audio pronunciations, grammar tips, and a search history to track learned words.

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