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Best Free Vocabulary Dictionary Apps

242+ iOS apps curated and reviewed

4.4 avg rating
17 free apps
Updated August 2026

Whether you're new to free vocabulary dictionary or looking for an upgrade, our curated collection of 242+ iOS apps has something for everyone. Each app is reviewed and rated by real users, helping you make an informed decision.

Compare top Free Vocabulary Dictionary Apps (August 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Dictionary.com: English WordsDictionary.com: English WordsFree4.8★ (328K)YesNoSep 2026
2Dictionary.Dictionary.Free4.8★ (15K)YesYesSep 2026
3Merriam-Webster DictionaryMerriam-Webster DictionaryFree4.8★ (324K)YesYesSep 2026
4English Dictionary • OfflineEnglish Dictionary • OfflineFree4.6★ (1.2K)NoYesSep 2026
5Advanced English Dictionary.Advanced English Dictionary.$2.994.7★ (241)NoNoAug 2026
6Oxford Dictionary & ThesaurusOxford Dictionary & ThesaurusFree4.6★ (29K)NoYesSep 2026
7Etymonline English DictionaryEtymonline English DictionaryFree4.9★ (11K)YesYesSep 2026
8Merriam-Webster Dictionary+Merriam-Webster Dictionary+$9.994.8★ (22K)NoNoSep 2026

Top Picks for Free Vocabulary Dictionary

Dictionary.com: English Words#1

Dictionary.com: English Words by Curiosity Media, Inc.

Dictionary, Thesaurus, Vocab
Editor's Choice
🔍 Reference
4.8😐(328K ratings)
FreeAdsIn-App Purchases
Dictionary.com: English Words screenshot 1
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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
Dictionary.#2

Dictionary. by Farlex, Inc.

by TheFreeDictionary.com
Strong Contender
🔍 Reference
4.8😊(15K ratings)
FreeAdsIn-App Purchases
Dictionary. screenshot 1
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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
  • 🔍 Easy to use and navigate

Room to Improve

  • 🔍 Cluttered interface with too many ads
  • 🐛 Occasional crashes and bugs
  • 🔍 Difficulty finding specific settings or features
  • 🔋 Drains battery life quickly
Merriam-Webster Dictionary#3

Merriam-Webster Dictionary by Merriam-Webster, Inc.

Worth Considering
🔍 Reference
4.8😊(324K ratings)
FreeAdsIn-App Purchases
#30in 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

More Free Vocabulary Dictionary apps to explore

FAQ about Free Vocabulary Dictionary

What are the best free vocabulary dictionary apps for iPhone?
Dictionary.com: English Words tops our free vocabulary dictionary apps ranking as of August 2026, with a 4.8-star average from 328K App Store ratings, and it's free to download.
Dictionary.com: English Words shows ads and has no in-app purchases, according to its App Store listing as of August 2026.
We track 242+ free vocabulary 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.