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Best Esl Dictionary Apps

235+ iOS apps curated and reviewed

4.5 avg rating
14 free apps
Updated August 2026

Looking for free esl dictionary apps? 14 of our 235+ tracked titles are free to download — no subscription, no trial. The rest are premium picks worth paying for.

Compare top Esl Dictionary Apps (August 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Dictionary.com: English WordsDictionary.com: English WordsFree4.8★ (328K)YesNoAug 2026
2Dictionary.Dictionary.Free4.8★ (15K)YesYesAug 2026
3Oxford Dictionary & ThesaurusOxford Dictionary & ThesaurusFree4.6★ (29K)NoYesAug 2026
4Spanish Dictionary - Dict BoxSpanish Dictionary - Dict BoxFree4.7★ (8.5K)YesYesAug 2026
5GoVocab: English DictionaryGoVocab: English DictionaryFree—NoNoAug 2026
6Dictionary Offline - Dict BoxDictionary Offline - Dict BoxFree4.6★ (12K)YesYesAug 2026
7Fastdic - Fast DictionaryFastdic - Fast DictionaryFree4.5★ (11K)YesYesAug 2026
8Persian Dictionary - Dict BoxPersian Dictionary - Dict BoxFree4.8★ (86K)YesYesAug 2026

Top Picks for Esl Dictionary

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
Dictionary.#2

Dictionary. by Farlex, Inc.

by TheFreeDictionary.com
Strong Contender
🔍 Reference
4.8😊(15K ratings)
FreeAdsIn-App Purchases
Dictionary. screenshot 1
Dictionary. screenshot 2
Dictionary. screenshot 3
Dictionary. screenshot 4
Dictionary. screenshot 5

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.

What We Love

  • 🚀 Comprehensive and detailed definitions
  • 👍 Helpful thesaurus and translation features
  • 🎮 Fun word games and activities
  • 📚 Vast amount of information beyond just definitions

Room to Improve

  • 🔍 Cluttered interface with too many ads
  • 🐛 Occasional crashes and bugs
  • 🔍 Difficulty finding specific settings or features
Oxford Dictionary & Thesaurus#3

Oxford Dictionary & Thesaurus by MobiSystems, Inc.

Etymology & Offline Vocabulary
Worth Considering
🔍 Reference
4.6😐(29K ratings)
FreeIn-App Purchases
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 Esl Dictionary apps to explore

4
Spanish Dictionary - Dict Box
Spanish Dictionary - Dict Box
Spanish Dictionary - Dict Box
English Spanish Translation
Free

This app provides a comprehensive English to Spanish and Spanish to English dictionary and translator. It offers offline functionality, word correction, and the ability to translate text directly from other applications and web browsers. Users can also access image search and word reminders.

Offline dictionary and translatorTranslate in other apps and browsersImage search and picture dictionary
🔍 Reference
(8.5K)
free with in-app purchases
5
GoVocab: English Dictionary
GoVocab: English Dictionary
GoVocab: English Dictionary
English Dictionary & Review
Free
📚 Education
(0)
6
Dictionary Offline - Dict Box
Dictionary Offline - Dict Box
Dictionary Offline - Dict Box
Dictionary for All Languages
Free

This app provides an offline dictionary and translator for over 50 languages. It offers smart word suggestions, text translation in other apps, offline pronunciation, and a picture dictionary. An optional premium upgrade unlocks advanced features and an ad-free experience.

Offline dictionary & translator50+ languages supportedSmart word suggestions
🔍 Reference
(12K)
free with in-app purchases
7
Fastdic - Fast Dictionary
Fastdic - Fast Dictionary
Fastdic - Fast Dictionary
English/Persian Translator
Free

This app offers comprehensive English/Persian translation and dictionary services, supporting over 250,000 words with online and offline access. It also includes AI-powered writing assistance, voice and image translation, and pronunciation guides.

English/Persian Dictionary & Translator (Online & Offline)AI Grammar Improvement & ParaphrasingVoice and Image Translation
🔍 Reference
(11K)
free with in-app purchases
8
Persian Dictionary - Dict Box
Persian Dictionary - Dict Box
Persian Dictionary - Dict Box
دیکشنری انگلیسی به فارسی
Free

This offline dictionary and translator app facilitates Persian-English language learning and communication. It offers fast, convenient translations, smart word suggestions, and text pronunciation without an internet connection. Advanced features like a picture dictionary and cross-device sync are available with a premium upgrade.

Offline English to Farsi translationOffline Farsi to English translationSmart word suggestions
🔍 Reference
(86K)
free with in-app purchases
9
Cambridge English Dictionary
Cambridge English Dictionary
Cambridge English Dictionary
for Advanced Learners, 4th ed.
Free

This comprehensive dictionary app provides definitions, pronunciations, and thesaurus entries for over 140,000 words and phrases. It offers advanced search capabilities, learning tools like flashcards and quizzes, and offline access. Ideal for English learners preparing for exams.

British and American English audio pronunciationsSMART Thesaurus for related words and phrasesFlash Card Quiz for memorization
🔍 Reference
(289)
free with in-app purchases
10
Cam Dictionary: Learn English
Cam Dictionary: Learn English
Cam Dictionary: Learn English
tap or type word for meaning
Free

Instantly find word meanings by tapping them with your camera or using voice input. This app leverages OCR technology to quickly search definitions via Google, saving you the effort of typing.

Camera-based word lookupOCR for text recognitionVoice dictation search
📚 Education
(7)
free
11
English Dictionary - Offline
English Dictionary - Offline
English Dictionary - Offline
Offline English Dictionary
Free

A comprehensive offline English dictionary offering in-depth word definitions, usage examples, and rich language data. Explore synonyms, antonyms, pronunciations, and more without an internet connection.

Offline accessDetailed word definitionsUsage examples
🔍 Reference
(7)
free with in-app purchases
12
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
13
Arabic Dictionary - Dict Box
Arabic Dictionary - Dict Box
Arabic Dictionary - Dict Box
قاموس انكليزي عربي
Free

This app provides offline English-Arabic and Arabic-English translation and dictionary services. It offers smart word suggestions, text pronunciation, and the ability to translate text within other applications. An optional premium version unlocks advanced features and an ad-free experience.

Offline English-Arabic translationOffline Arabic-English translationSmart word suggestions
🔍 Reference
(28K)
freemium
14
Oxford Dictionary of English 2
Oxford Dictionary of English 2
Oxford Dictionary of English 2
UniDict® Powered
$14.99

Access the comprehensive Oxford Dictionary of English, Second Edition, with audio pronunciations. Features include advanced search, flashcard creation, and offline use. Ideal for students and language enthusiasts.

Full content of unabridged texts72,000 pre-recorded sound filesThree-way cross-referencing search
📚 Education
(30)
paid
15
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
16
Merriam-Webster Dictionary+
Merriam-Webster Dictionary+
Merriam-Webster Dictionary+
Premium Ad-free Dictionary
$9.99

Access America's leading dictionary with over 15,000 extra entries for people and places. Enjoy offline access, voice search, and daily vocabulary builders. This app offers expert word guidance with a thesaurus and example sentences.

Ad-free experience15,000+ premium entriesOffline dictionary access
🔍 Reference
(22K)
freemium
17
Advanced English Dictionary.
Advanced English Dictionary.
Advanced English Dictionary.
English Dictionary & Thesaurus
$2.99

This comprehensive English dictionary and thesaurus offers offline access to millions of words, definitions, pronunciations, and etymologies. Explore word connections, sample sentences, and discover new vocabulary with advanced search and unique features.

Extensive word database (4.9 million words)High-quality audio pronunciations (US, UK, AU)Advanced search technology
🔍 Reference
(241)
paid
18
Learner's Dictionary - English
Learner's Dictionary - English
Learner's Dictionary - English
by Merriam-Webster, Inc.
$4.99

Enhance your English comprehension with a comprehensive dictionary designed for learners. Access clear definitions, extensive usage examples, and helpful tools like voice search and audio pronunciations. Master vocabulary, idioms, and phrases with this essential reference tool.

100,000 words and phrases160,000 usage examples22,000 idioms and phrases
🔍 Reference
(59)
free
19
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
20
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

FAQ about Esl Dictionary

What are the best esl dictionary apps for iPhone?
Dictionary.com: English Words tops our esl dictionary apps ranking as of August 2026, with a 4.8-star average from 328K App Store ratings, and it's free to download.
Yes — 14 of the top esl dictionary apps we rank are free to download, including Dictionary.com: English Words and Dictionary..
Dictionary.com: English Words shows ads and has no in-app purchases, according to its App Store listing as of August 2026.
We track 235+ esl dictionary apps 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.