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Best Dictionary And Thesaurus Pro Apps

181+ iOS apps curated and reviewed

4.5 avg rating
16 free apps
Updated June 2026

From beginner-friendly picks to power-user tools, our dictionary and thesaurus pro list covers 181+ iPhone apps updated through June 2026. Compare ratings, prices, and screenshots in one place.

Compare top Dictionary And Thesaurus Pro Apps (June 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Dictionary and Thesaurus ProDictionary and Thesaurus Pro$9.994.9★ (2.5K)NoNoJul 2026
2Merriam-Webster DictionaryMerriam-Webster DictionaryFree4.8★ (320K)YesYesJul 2026
3Oxford Dictionary & ThesaurusOxford Dictionary & ThesaurusFree4.6★ (28K)YesYesJul 2026
4Dictionary.com: English WordsDictionary.com: English WordsFree4.8★ (328K)YesNoJul 2026
5Advanced Dictionary&ThesaurusAdvanced Dictionary&ThesaurusFree4.7★ (4.3K)NoYesJul 2026
6Dictionary.Dictionary.Free4.8★ (14K)YesYesJul 2026
7WordWeb DictionaryWordWeb DictionaryFree4.5★ (85)NoNoJul 2026
8FreeSaurus - The Free Thesaurus!FreeSaurus - The Free Thesaurus!Free3.4★ (120)NoNoJul 2026

Top Picks for Dictionary And Thesaurus Pro

Dictionary and Thesaurus Pro#1

Dictionary and Thesaurus Pro by Farlex, Inc.

by TheFreeDictionary.com
Editor's Choice
🔍 Reference
4.9😊(2.5K ratings)
$9.99
Dictionary and Thesaurus Pro screenshot 1
Dictionary and Thesaurus Pro screenshot 2
Dictionary and Thesaurus Pro screenshot 3
Dictionary and Thesaurus Pro screenshot 4
Dictionary and Thesaurus Pro screenshot 5

Access a comprehensive offline dictionary and thesaurus with extensive content in multiple languages. Explore definitions, synonyms, and specialized dictionaries for various fields. Enjoy an ad-free experience with features like word games and instant lookups.

What We Love

  • 👍 Easy to use
  • 🚀 Comprehensive and detailed definitions
  • 💡 Helpful translation and pronunciation features
  • 👍 Useful word games and trivia

Room to Improve

  • 🐛 Occasional bugs and crashes
  • 🔍 Limited thesaurus functionality
  • 🔍 Lack of customization options
Merriam-Webster Dictionary#2

Merriam-Webster Dictionary by Merriam-Webster, Inc.

Strong Contender
🔍 Reference
4.8😊(320K ratings)
FreeAdsIn-App Purchases
#40in Reference
Merriam-Webster Dictionary screenshot 1
Merriam-Webster Dictionary screenshot 2
Merriam-Webster Dictionary screenshot 3
Merriam-Webster Dictionary screenshot 4

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.

What We Love

  • 🚀 Easy to use
  • 👍 Comprehensive definitions
  • 👍 Helpful thesaurus
  • 🚀 Offline access

Room to Improve

  • 🐛 Ads can be intrusive
  • 🐛 Difficulty closing ads
  • 🐛 Repetitive game questions
Oxford Dictionary & Thesaurus#3

Oxford Dictionary & Thesaurus by MobiSystems, Inc.

Thesaurus & Offline Vocabulary
Worth Considering
🔍 Reference
4.6😐(28K ratings)
FreeAdsIn-App Purchases
#79in Reference
Oxford Dictionary & Thesaurus screenshot 1
Oxford Dictionary & Thesaurus screenshot 2
Oxford Dictionary & Thesaurus screenshot 3
Oxford Dictionary & Thesaurus screenshot 4
Oxford Dictionary & Thesaurus screenshot 5
Oxford Dictionary & Thesaurus screenshot 6

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.

What We Love

  • 👍 Reliable and simple to use
  • 👍 Comprehensive and best for all English, especially rare and aged language
  • 👍 Very useful for learning new words
  • 👍 Excellent reference app

Room to Improve

  • 🐛 Glitchy, way too many ads
  • 🔒 Annoying popup ads makes it unusable
  • 🔒 Ads stuck in, despite payment

More Dictionary And Thesaurus Pro apps to explore

4
Dictionary.com: English Words
Dictionary.com: English Words
Dictionary.com: English Words
Dictionary, Thesaurus, Vocab
Free

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.

2 million+ definitions and synonymsWord of the DayExample sentences
🔍 Reference
(328K)
free with in-app purchases
5
Advanced Dictionary&Thesaurus
Advanced Dictionary&Thesaurus
Advanced Dictionary&Thesaurus
English dictionary with Audio
Free

This comprehensive English dictionary and thesaurus offers precise definitions, synonyms, antonyms, and related words. It features intelligent search tools, offline audio, and customizable themes to enhance your language learning experience.

140,000+ definitionsSynonyms, antonyms, and related wordsOffline audio pronunciation
🔍 Reference
(4.3K)
free with in-app purchases
6
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
(14K)
free with in-app purchases
7
WordWeb Dictionary
WordWeb Dictionary
WordWeb Dictionary
Offline ad-free dictionary
Free

This app provides a comprehensive offline English dictionary and thesaurus with fast searching, spelling suggestions, definitions, and usage examples. It offers extensive word data and advanced search filters without requiring an internet connection.

Offline dictionary and thesaurusFast searchingSpelling suggestions
🔍 Reference
(85)
free
8
FreeSaurus - The Free Thesaurus!
FreeSaurus - The Free Thesaurus!
FreeSaurus - The Free Thesaurus!
by Weeswares Pte Ltd
Free

This is a straightforward thesaurus app that provides synonyms and antonyms for words. It focuses on simplicity and ease of use, offering related words alongside definitions. An internet connection is required for it to function.

Synonyms and antonymsRelated wordsSimple interface
🔍 Reference
(120)
free
9
Power Thesaurus
Power Thesaurus
Power Thesaurus
Comprehensive. Fast. Reliable.
Free

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.

Ad-free PRO MembershipIntuitive navigationSmart filters
🔍 Reference
(2.9K)
freemium
10
LookUp: English Dictionary App
LookUp: English Dictionary App
LookUp: English Dictionary App
Build vocabulary, a word daily
Free

Enhance your English vocabulary with a daily word, interactive quizzes, and a comprehensive dictionary. Features include visual learning aids, audio pronunciations, and translations to over 20 languages. Ideal for learners and word enthusiasts.

Daily Word of the Day with illustrationsComprehensive English Dictionary & ThesaurusAudio pronunciations and example sentences
🔍 Reference
(3.1K)
free with in-app purchases
11
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
12
LexicEN Lite English
LexicEN Lite English
LexicEN Lite English
Offline Dictionary & Thesaurus
Free

This offline dictionary and thesaurus provides quick access to over 150,000 words with definitions, pronunciations, and example sentences. Easily look up words, manage favorites, and view search history without an internet connection.

Offline search150,000+ wordsDefinitions, pronunciation, examples
🔍 Reference
(1.2K)
free with in-app purchases
13
Dictionary - English
Dictionary - English
Dictionary - English
English Dictionary Offline
Free

This offline English dictionary and thesaurus provides definitions, synonyms, antonyms, and example sentences for over 147,000 words. It offers intelligent word suggestions, spelling corrections, and integrates with Wikipedia for deeper learning. Save favorite words and track your search history.

Offline dictionary and thesaurus147,000+ wordsSynonyms and antonyms
🔍 Reference
(108)
free with in-app purchases
14
Concise English Dictionary
Concise English Dictionary
Concise English Dictionary
English Dictionary & Thesaurus
$0.99

Explore a vast English dictionary and thesaurus with detailed definitions, pronunciations, and word origins. Access over 591,700 entries and 4.9 million words, with offline capabilities and a user-friendly interface for enhanced language learning.

Comprehensive dictionary databaseHigh-quality audio pronunciationsExtensive IPA pronunciation guides
🔍 Reference
(30)
paid
15
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
(258)
free with in-app purchases
16
Advanced English Dictionary HD
Advanced English Dictionary HD
Advanced English Dictionary HD
English Dictionary & Thesaurus
$3.99

Access a vast English dictionary and thesaurus with millions of words, definitions, and pronunciations. Explore word origins, sample sentences, and discover connections with a unique conceptual thesaurus. Enjoy offline access and an ad-free experience.

Extensive word database (4.9 million words)High-quality audio pronunciations (US, UK, AU)Advanced search technology
🔍 Reference
(59)
paid
17
Kurdish Dictionary - Dict Box
Kurdish Dictionary - Dict Box
Kurdish Dictionary - Dict Box
English Kurdish Translation
Free

This app serves as a comprehensive English to Kurdish and Kurdish to English dictionary and translator. It offers offline functionality, pronunciation, definitions, and the ability to translate words directly within other applications. Users can also find related words, phrases, and even use image search for a richer learning experience.

Offline translation and pronunciationExtensive word and expression databaseIn-app word translation
🔍 Reference
(14K)
free with in-app purchases
18
Spanish Dictionary & Thesaurus
Spanish Dictionary & Thesaurus
Spanish Dictionary & Thesaurus
with English Translations
Free

Access a comprehensive Spanish dictionary and thesaurus with English translations. Look up definitions, verb conjugations, and synonyms. Features include offline access, audio pronunciations, and voice search for convenient word discovery.

Offline Spanish dictionarySpanish to English translationsAudio pronunciations
🔍 Reference
(186)
free with in-app purchases
19
Collins Dictionary & Thesaurus
Collins Dictionary & Thesaurus
Collins Dictionary & Thesaurus
Complete English reference
$39.99

Access a comprehensive English language reference with over 500,000 dictionary entries and 377,000 thesaurus entries. Features include advanced search tools, customizable themes, and vocabulary building aids.

Extensive dictionary with 500,000+ entriesLarge thesaurus with 377,000+ entriesAdvanced search tools (autocomplete, keyword, camera, voice)
🔍 Reference
(90)
paid
20
Dictionary Linguee
Dictionary Linguee
Dictionary Linguee
German, French, Spanish, more
Free

Access reliable translations for multiple languages, including French, Spanish, and German, with this comprehensive dictionary app. It offers fast, offline access to a vast database compiled by lexicographers and includes example sentences and audio pronunciations.

Translations in French, Spanish, German, and moreCompiled by over 400 lexicographersFast translations with quick search
🔍 Reference
(11K)
free

FAQ about Dictionary And Thesaurus Pro

What are the best dictionary and thesaurus pro apps for iPhone?
Dictionary and Thesaurus Pro tops our dictionary and thesaurus pro apps ranking as of June 2026, with a 4.9-star average from 2.5K App Store ratings, and it's priced at $9.99.
Yes — 16 of the top dictionary and thesaurus pro apps we rank are free to download, including Merriam-Webster Dictionary and Oxford Dictionary & Thesaurus.
Dictionary and Thesaurus Pro has no ads and has no in-app purchases, according to its App Store listing as of June 2026.
We track 181+ dictionary and thesaurus pro apps on the iOS App Store as of June 2026, ranked by rating, recency, and analysis of real user reviews.
This app provides a comprehensive offline dictionary and thesaurus with extensive content in English and 13 other languages. It offers definitions, synonyms, example sentences, audio pronunciations, and specialized dictionaries for fields like medical, legal, and financial.
Key features include an ad-free experience, offline access to dictionaries and thesauruses, offline translations into over 40 languages, specialty dictionaries, word games, instant lookups from other apps, and voice search.