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Best American English Dictionary Apps

244+ iOS apps curated and reviewed

4.6 avg rating
18 free apps
Updated November 2026

Looking for free american english dictionary apps? 18 of our 244+ tracked titles are free to download — no subscription, no trial. The rest are premium picks worth paying for.

Compare top American English Dictionary Apps (November 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Dictionary.com: English WordsDictionary.com: English WordsFree4.8★ (328K)YesNoNov 2026
2Oxford Dictionary & ThesaurusOxford Dictionary & ThesaurusFree4.6★ (29K)NoYesNov 2026
3Merriam-Webster DictionaryMerriam-Webster DictionaryFree4.8★ (332K)YesYesNov 2026
4WordWeb DictionaryWordWeb DictionaryFree4.6★ (270)NoNoNov 2026
5Macmillan American DictionaryMacmillan American DictionaryFree4.9★ (42)NoNoOct 2026
6American English by NemoAmerican English by NemoFree4.5★ (1.7K)NoYesNov 2026
7Companion SynonymsCompanion Synonyms$1.995.0★ (10)NoNoOct 2026
8Advanced English Dictionary+Advanced English Dictionary+Free4.7★ (916)NoYesOct 2026

Top Picks for American English Dictionary

Dictionary.com: English Words#1

Dictionary.com: English Words by Curiosity Media

Dictionary, Thesaurus, Vocab
Editor's Choice
🔍 Reference
4.8😐(328K ratings)
FreeAds
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Access over 2 million definitions and synonyms to enhance your English vocabulary. This app offers daily new words, example sentences, idioms, rhymes, and audio pronunciations. Improve your writing with grammar tips and explore word origins.

What We Love

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

Room to Improve

  • 🐛 Inconsistent search results and missing definitions
  • 💸 Aggressive ads even after paid upgrades
  • 🤯 Frequent crashes and performance issues
  • 🤔 Confusing layout changes and UI issues
  • 🤷‍♀️ Paid features not always working as expected
Oxford Dictionary & Thesaurus#2

Oxford Dictionary & Thesaurus by MobiSystems, Inc.

Etymology & Offline Vocabulary
Strong Contender
🔍 Reference
4.6😐(29K ratings)
FreeIn-App Purchases
#74in Reference
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Access 18 dictionaries and over a million words, phrases, and definitions. Translate between English and major languages, explore etymology, and find synonyms and antonyms. This trusted language reference is ideal for students, professionals, and language learners.

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
  • 👍 Helps with homework or even if you forgot how to spell write or don't know the meaning of a word
  • 👍 Excellent dictionary that has everything you'll ever need
  • 👍 Offline access is very helpful
  • 👍 Detailed definitions including word origins

Room to Improve

  • 🐛 Glitchy, way too many ads
  • 🔒 Annoying popup ads makes it unusable
  • 🔒 Ads stuck in, despite payment
  • 🐛 Never connect the server
  • 🐛 Stopped working
  • 🔒 Annoying popup ads
  • 🐛 Definitions disappear before reading is complete
  • 🔒 Intrusive and persistent ads even in paid version
  • 🔒 Subscription pricing is too high
Merriam-Webster Dictionary#3

Merriam-Webster Dictionary by Merriam-Webster, Inc.

Worth Considering
🔍 Reference
4.8😊(332K ratings)
FreeAdsIn-App Purchases
#44in Reference
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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
  • 👍 Word of the day feature
  • 👍 Fun word games

Room to Improve

  • 🐛 Ads can be intrusive
  • 🐛 Difficulty closing ads
  • 🐛 Repetitive game questions
  • 🐛 Missing words in dictionary
  • 🐛 Unreasonable level progression in games

More American English Dictionary apps to explore

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FAQ about American English Dictionary

What are the best american english dictionary apps for iPhone?
Dictionary.com: English Words tops our american english dictionary apps ranking as of November 2026, with a 4.8-star average from 328K App Store ratings, and it's free to download.
Yes — 18 of the top american english dictionary apps we rank are free to download, including Dictionary.com: English Words and Oxford Dictionary & Thesaurus.
Dictionary.com: English Words shows ads and has no in-app purchases, according to its App Store listing as of November 2026.
We track 244+ american english dictionary apps on the iOS App Store as of November 2026, ranked by rating, recency, and analysis of real user reviews.