1. Home
  2. Topics
  3. Mono Dictionary

Best Mono Dictionary Apps

238+ iOS apps curated and reviewed

4.3 avg rating
17 free apps
Updated August 2026

With an average user rating of 4.3★, the mono dictionary category is one of the App Store's strongest. Browse all 238+ apps we track, sorted so the most loved ones surface first.

Compare top Mono 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
3Merriam-Webster Dictionary+Merriam-Webster Dictionary+$9.994.8★ (22K)NoNoAug 2026
4Merriam-Webster DictionaryMerriam-Webster DictionaryFree4.8★ (324K)YesYesAug 2026
5Oxford Dictionary & ThesaurusOxford Dictionary & ThesaurusFree4.6★ (29K)NoYesAug 2026
6American Heritage® DictionaryAmerican Heritage® Dictionary$12.994.7★ (199)NoYesAug 2026
7Dictionary Offline - Dict BoxDictionary Offline - Dict BoxFree4.6★ (12K)YesYesAug 2026
8Persian Dictionary - Dict BoxPersian Dictionary - Dict BoxFree4.8★ (86K)YesYesAug 2026

Top Picks for Mono 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
#97in Reference
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
Merriam-Webster Dictionary+#3

Merriam-Webster Dictionary+ by Merriam-Webster, Inc.

Premium Ad-free Dictionary
Worth Considering
🔍 Reference
4.8😊(22K ratings)
$9.99
#16in Reference
Merriam-Webster Dictionary+ screenshot 1
Merriam-Webster Dictionary+ screenshot 2
Merriam-Webster Dictionary+ screenshot 3
Merriam-Webster Dictionary+ screenshot 4

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.

What We Love

  • 👍 Clear and intuitive layout
  • 🚀 Convenient offline access
  • 🔍 Comprehensive word definitions
  • 🔠 Helpful thesaurus and word games

Room to Improve

  • 🐛 Frequent app freezes and crashes
  • ⚠️ Missing words and incomplete definitions
  • 🔍 Lack of spell-check and word suggestions

More Mono Dictionary apps to explore

4
Merriam-Webster Dictionary
Merriam-Webster Dictionary
Merriam-Webster Dictionary
by Merriam-Webster, Inc.
Free

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.

Offline dictionary accessVoice search for wordsDaily Word of the Day
🔍 Reference
(324K)
free with in-app purchases
5
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
6
American Heritage® Dictionary
American Heritage® Dictionary
American Heritage® Dictionary
UniDict® - 4th Edition (AHD4)
$12.99

Access a comprehensive digital dictionary with nearly 300,000 terms and thousands of sound files. Features include advanced search, etymology, and AI-powered tools for deeper understanding and language learning.

Full dictionary text33,000+ example sentences64,000+ recorded sound files
🔍 Reference
(199)
free with in-app purchases
7
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
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
Vietnamese Dictionary Dict Box
Vietnamese Dictionary Dict Box
Vietnamese Dictionary Dict Box
Engish Vietnamese Translator
Free

This app serves as a comprehensive offline Vietnamese-English dictionary and translator. It offers text translation, word suggestions, pronunciation guides, and a picture dictionary to enhance language learning and communication.

Offline dictionary and translatorText translation for sentences and paragraphsIntelligent word suggestions
🔍 Reference
(18K)
free with in-app purchases
10
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
11
Dictionary - Word Search Lex
Dictionary - Word Search Lex
Dictionary - Word Search Lex
Dictionary for normal Language
Free

Access a professional multilingual dictionary for English, Japanese, and Korean. Get detailed definitions, pronunciations, and example sentences. Save your search history and favorites for offline language learning.

Multilingual definitionsPronunciations and examplesAuto-save history
🔧 Utilities
(1)
ad-supported
12
dict.cc Dictionary
dict.cc Dictionary
dict.cc Dictionary
translations for 26 languages
Free

This app provides translations for 53 language combinations, functioning as an offline dictionary. Downloadable vocabularies are updated daily, and users can suggest new translations. An ad-free version with extra features is available via a free trial.

Offline dictionary functionality53 language combinationsBidirectional translations
🔍 Reference
(132)
free with in-app purchases
13
LEO Dictionary
LEO Dictionary
LEO Dictionary
with vocab trainer and forum
Free

Access extensive language dictionaries with example sentences and audio pronunciations. Improve your vocabulary with a spaced repetition system and get help with language questions in community forums.

Extensive multilingual dictionariesAudio pronunciationVocabulary trainer with spaced repetition
🔍 Reference
(225)
free with in-app purchases
14
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
15
SCRABBLE Dictionary
SCRABBLE Dictionary
SCRABBLE Dictionary
by Merriam-Webster, Inc.
$4.99

This app provides an official dictionary for playing Scrabble, featuring over 150,000 playable words. It includes words eligible for recreational and school play, as well as tournament-specific lists. Tools like a word finder and voice search enhance the gameplay experience.

Official Scrabble word listOver 150,000 playable wordsWord Finder tool
🔍 Reference
(123)
paid
16
Hanping Chinese Dictionary
Hanping Chinese Dictionary
Hanping Chinese Dictionary
Offline search + handwriting
Free

Master Mandarin Chinese with this comprehensive offline dictionary. Features handwriting recognition, native speaker audio, example sentences, and tools for vocabulary building and character mastery. Unlock premium features for advanced learning.

Offline functionalityHandwriting recognitionNative speaker audio
📚 Education
(5)
free with in-app purchases
17
Pleco Chinese Dictionary
Pleco Chinese Dictionary
Pleco Chinese Dictionary
Handwriting, OCR, flashcards
Free

This app is a comprehensive tool for learning Chinese, offering integrated dictionaries, document reading, and flashcard features. It supports various input methods including handwriting and OCR, with extensive dictionary options and pronunciation guides.

Integrated dictionaries with over 110,000 entriesFull-screen handwriting inputLive OCR for word lookup
🔍 Reference
(1.9K)
free with in-app purchases
18
LookUp: English Dictionary App
LookUp: English Dictionary App
LookUp: English Dictionary App
Vocabulary Builder & Thesaurus
Free

Enhance your English vocabulary with a daily word, interactive quizzes, and a comprehensive dictionary. Features include visual learning aids, audio pronunciations, and translations to over 20 languages. Ideal for learners and word enthusiasts.

Daily Word of the Day with illustrationsComprehensive English Dictionary & ThesaurusAudio pronunciations and example sentences
🔍 Reference
(3.1K)
free with in-app purchases
19
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
20
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

FAQ about Mono Dictionary

What are the best mono dictionary apps for iPhone?
Dictionary.com: English Words tops our mono 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 — 17 of the top mono 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 238+ mono 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.