Best Etymonline Apps

243+ iOS apps curated and reviewed

4.4 avg rating
14 free apps
Updated August 2026

Looking for free etymonline apps? 14 of our 243+ tracked titles are free to download — no subscription, no trial. The rest are premium picks worth paying for.

Compare top Etymonline Apps (August 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Etymonline English DictionaryEtymonline English DictionaryFree4.9★ (11K)YesYesAug 2026
2EtymologyExplorerEtymologyExplorerFree4.8★ (1.5K)NoYesAug 2026
3Merriam-Webster DictionaryMerriam-Webster DictionaryFree4.8★ (324K)YesYesAug 2026
4Etymology Dictionary OfflineEtymology Dictionary OfflineFree3.7★ (21)NoNoMay 2026
5Deep DictionaryDeep DictionaryFree4.7★ (49)YesNoAug 2026
6Dictionary.com: English WordsDictionary.com: English WordsFree4.8★ (328K)YesNoAug 2026
7Old English WordhordOld English WordhordFree4.9★ (216)NoYesAug 2026
8Idioms and Slang DictionaryIdioms and Slang DictionaryFree4.7★ (1.1K)YesYesAug 2026

Top Picks for Etymonline

Etymonline English Dictionary#1

Etymonline English Dictionary by 崇伟 柳

Dictionary to Build Vocabulary
Editor's Choice
📚 Education
4.9😊(11K ratings)
FreeAdsIn-App Purchases
Etymonline English Dictionary screenshot 1
Etymonline English Dictionary screenshot 2
Etymonline English Dictionary screenshot 3
Etymonline English Dictionary screenshot 4
Etymonline English Dictionary screenshot 5
Etymonline English Dictionary screenshot 6

Explore the origins and history of English words with this comprehensive dictionary app. It offers instant search, related word suggestions, and an offline mode for premium users. Enhance your vocabulary and understanding of word roots.

What We Love

  • 🚀 Excellent app
  • 👍 Comprehensive and well-researched
  • 👍 Useful for understanding word origins
  • 👍 Informative and insightful

Room to Improve

  • 🐛 App version has incomplete entries
  • 🔒 Privacy concerns with data collection
  • 💰 Subscription fees too high
EtymologyExplorer#2

EtymologyExplorer by Might Could Studios LLC

Explore words and their roots!
Strong Contender
📚 Education
4.8😊(1.5K ratings)
FreeIn-App Purchases
EtymologyExplorer screenshot 1
EtymologyExplorer screenshot 2
EtymologyExplorer screenshot 3
EtymologyExplorer screenshot 4

Discover the fascinating origins and connections of words. This app provides visual maps of word roots, detailed etymologies, definitions, and audio pronunciations. Explore how seemingly unrelated words can share common ancestry.

What We Love

  • 🚀 Intuitive and user-friendly
  • 🔍 Comprehensive and detailed etymology information
  • 🌟 Visually appealing and well-designed
  • 📚 Helpful for language learning and vocabulary building

Room to Improve

  • 🐛 Occasional bugs and crashes
  • 🔍 Limited database of words
  • 💰 Subscription model may be costly for some users
Merriam-Webster Dictionary#3

Merriam-Webster Dictionary by Merriam-Webster, Inc.

Worth Considering
🔍 Reference
4.8😊(324K ratings)
FreeAdsIn-App Purchases
#34in 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

More Etymonline apps to explore

4
Etymology Dictionary Offline
Etymology Dictionary Offline
Etymology Dictionary Offline
offline Etymology Dictionary
Free

Explore the origins and historical evolution of words with this comprehensive offline dictionary. It offers definitions, search functionality, and a quiz to test your vocabulary knowledge.

Offline access to word originsTens of thousands of words and termsSearch functionality
📚 Education
(21)
free
5
Deep Dictionary
Deep Dictionary
Deep Dictionary
Wikipedia, Images, Thesaurus
Free

Access definitions from various sources like Wikipedia and Urban Dictionary, with multilingual support and pronunciation guides. Enhance your vocabulary with synonyms, related words, and real-life usage examples.

Multilingual definitionsUrban Dictionary slang integrationWikipedia content access
🔍 Reference
(49)
ad-supported
6
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
7
Old English Wordhord
Old English Wordhord
Old English Wordhord
Medieval word of the day
Free

Discover a new Old English word daily with a medieval-inspired interface. Access widgets for your home screen, search a vast archive, and explore pronunciations and manuscript illustrations. Save, share, and categorize words to deepen your understanding of this ancient language.

Daily Old English wordHome and Lock Screen widgetsSearchable word archive
🎬 Entertainment
(216)
free with in-app purchases
8
Idioms and Slang Dictionary
Idioms and Slang Dictionary
Idioms and Slang Dictionary
Phrase meanings and history
Free

Explore the meanings and origins of over 61,000 idioms, slang terms, proverbs, and expressions. Understand conversational English like a native speaker with definitions, historical context, and example sentences.

Definitions from top sourcesHistory and origin of phrasesExample sentences
🔍 Reference
(1.1K)
free with in-app purchases
9
Фразаурус: idiomatic thesaurus
Фразаурус: idiomatic thesaurus
Фразаурус: idiomatic thesaurus
Фразеологический словарь
Free
📚 Education
(0)
10
Old English Etymology
Old English Etymology
Old English Etymology
the origin of Old English
$2.99

Explore the origins of Old English words, names, prefixes, and suffixes with this comprehensive etymological dictionary. It offers detailed information on meaning, pronunciation, and derivations, categorized for easy navigation.

Extensive etymological dictionaryOver 5699 entriesDetailed entry information
🔍 Reference
(0)
paid
11
Italian Etymology Dictionary
Italian Etymology Dictionary
Italian Etymology Dictionary
etymology of Italian words
$1.99
🔍 Reference
(0)
12
Latin Etymology Dictionary
Latin Etymology Dictionary
Latin Etymology Dictionary
Latin words, names, roots
$2.99
🔍 Reference
(0)
13
Greek Etymology Dictionary
Greek Etymology Dictionary
Greek Etymology Dictionary
by Trang Hoai
$1.99

Explore the origins of Ancient Greek words with this comprehensive dictionary. It covers 2000 years of linguistic history, offering detailed etymologies, variants, and first attestation dates for over 7500 entries. Enhance your understanding of the Greek language and its vocabulary.

2000 years of Ancient Greek history7500+ revised etymologiesFirst attestation dates
🔍 Reference
(1)
paid
14
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
15
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
16
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
(268)
free
17
Modern English Etymology
Modern English Etymology
Modern English Etymology
etymological dictionary
$3.99

Explore the origins and meanings of English words, including slang, archaic terms, and foreign phrases. Discover word roots, related terms, and historical usage with quotations from famous authors and contemporary sources. Organize your findings with topics and save favorite entries.

Comprehensive word dictionaryIdentification of word rootsCross-references to similar roots
🔍 Reference
(0)
paid
18
WordReference Dictionary
WordReference Dictionary
WordReference Dictionary
by WordReference.com, LLC
Free

Access a comprehensive suite of dictionaries and translation tools for multiple languages. Explore conjugations, synonyms, and a vast forum with millions of answered questions. This app provides quick access to extensive language resources.

Extensive multilingual dictionariesVerb conjugatorsSynonym finder
🔍 Reference
(22)
ad-supported
19
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
20
Greek and Latin roots finder
Greek and Latin roots finder
Greek and Latin roots finder
by Mantas Puociauskas
Free

Expand your vocabulary by understanding word origins. This app teaches you prefixes, suffixes, and roots to unlock the meaning of unfamiliar words. Mastering a few key word parts can significantly increase your word knowledge.

Learn word parts (prefixes, suffixes, roots)Unlock meaning of unfamiliar wordsBuild vocabulary effectively
📚 Education
(15)
free

FAQ about Etymonline

What are the best etymonline apps for iPhone?
Etymonline English Dictionary tops our etymonline apps ranking as of August 2026, with a 4.9-star average from 11K App Store ratings, and it's free to download.
Yes — 14 of the top etymonline apps we rank are free to download, including Etymonline English Dictionary and EtymologyExplorer.
Etymonline English Dictionary shows ads and offers in-app purchases, according to its App Store listing as of August 2026.
We track 243+ etymonline apps on the iOS App Store as of August 2026, ranked by rating, recency, and analysis of real user reviews.
This app provides access to the complete Online Etymology Dictionary, allowing users to explore the origins and history of English words. It helps users understand word roots and improve their vocabulary through features like related word suggestions and instant search.
Key features include instantaneous search with spelling suggestions, the ability to find related words that share the same origin or root, and a universal app design for iPhones and iPads. Premium users also gain access to an offline dictionary and an ad-free experience.

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