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Best Dictionary Apps

246+ iOS apps curated and reviewed

4.7 avg rating
19 free apps
Updated September 2026

If you already know Merriam, this is the deeper bench. 246+ dictionary apps for iPhone, all reviewed and ranked by user rating, recency, and download trend as of September 2026.

Compare top Dictionary Apps (September 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Merriam-Webster DictionaryMerriam-Webster DictionaryFree4.8★ (324K)YesYesSep 2026
2Oxford Dictionary & ThesaurusOxford Dictionary & ThesaurusFree4.6★ (29K)NoYesSep 2026
3Dictionary.com: English WordsDictionary.com: English WordsFree4.8★ (328K)YesNoSep 2026
4Vocabulary - Learn words dailyVocabulary - Learn words dailyFree4.8★ (217K)YesYesSep 2026
5Persian Dictionary - Dict BoxPersian Dictionary - Dict BoxFree4.8★ (86K)YesYesSep 2026
6Dictionary.Dictionary.Free4.8★ (15K)YesYesSep 2026
7Google TranslateGoogle TranslateFree4.3★ (84K)NoNoSep 2026
8Eng-Mm DictionaryEng-Mm DictionaryFree4.5★ (1.1K)YesNoSep 2026

Top Picks for Dictionary

Merriam-Webster Dictionary#1

Merriam-Webster Dictionary by Merriam-Webster, Inc.

Editor's Choice
🔍 Reference
4.8😊(324K ratings)
FreeAdsIn-App Purchases
#35in 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
  • 👍 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
Oxford Dictionary & Thesaurus#2

Oxford Dictionary & Thesaurus by MobiSystems, Inc.

Etymology & Offline Vocabulary
Strong Contender
🔍 Reference
4.6😐(29K ratings)
FreeIn-App Purchases
#76in 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
  • 👍 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
Dictionary.com: English Words#3

Dictionary.com: English Words by Curiosity Media

Dictionary, Thesaurus, Vocab
Worth Considering
🔍 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
  • 🤩 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

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FAQ about Dictionary

What are the best dictionary apps for iPhone?
Merriam-Webster Dictionary tops our dictionary apps ranking as of September 2026, with a 4.8-star average from 324K App Store ratings, and it's free to download.
Yes — 19 of the top dictionary apps we rank are free to download, including Merriam-Webster Dictionary and Oxford Dictionary & Thesaurus.
Merriam-Webster Dictionary shows ads and offers in-app purchases, according to its App Store listing as of September 2026.
We track 246+ dictionary apps on the iOS App Store as of September 2026, ranked by rating, recency, and analysis of real user reviews.
This app provides access to America's most respected dictionary, continuously updated with new words and meanings. It's designed for English language reference, education, and vocabulary building, offering features like offline access, voice search, and a thesaurus.
Key features include offline access to definitions and synonyms, voice search, a daily 'Word of the Day,' word games for vocabulary testing, favorite word tracking, and an integrated thesaurus with over 200,000 word choices. It also offers audio pronunciations by real English speakers.

Related searches

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