Best All In One Dictionary Apps

235+ iOS apps curated and reviewed

4.5 avg rating
15 free apps
Updated August 2026

Whether you're new to all in one dictionary or looking for an upgrade, our curated collection of 235+ iOS apps has something for everyone. Each app is reviewed and rated by real users, helping you make an informed decision.

Compare top All In One Dictionary Apps (August 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1All In One DictionaryAll In One DictionaryFree3.8★ (5)NoYesJul 2026
2Dictionary.com: English WordsDictionary.com: English WordsFree4.8★ (328K)YesNoAug 2026
3Dictionary All in oneDictionary All in oneFree3.0★ (2)YesYesMay 2026
4Dictionary.Dictionary.Free4.8★ (15K)YesYesAug 2026
5Merriam-Webster Dictionary+Merriam-Webster Dictionary+$9.994.8★ (22K)NoNoAug 2026
6Oxford Dictionary & ThesaurusOxford Dictionary & ThesaurusFree4.6★ (29K)NoYesAug 2026
7All English DictionaryAll English DictionaryFree4.8★ (4)YesNoMay 2026
8Merriam-Webster DictionaryMerriam-Webster DictionaryFree4.8★ (324K)YesYesAug 2026

Top Picks for All In One Dictionary

All In One Dictionary#1

All In One Dictionary by Mudasser Khalid

Translate to all languages
Editor's Choice
🔍 Reference
3.8(5 ratings)
FreeIn-App Purchases
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Translate text, voice, and images across over 80 languages with this comprehensive language tool. Features include real-time voice translation, camera translation for signs and documents, and audio pronunciations. Optimized for a user-friendly experience on all devices.

Dictionary.com: English Words#2

Dictionary.com: English Words by Curiosity Media

Dictionary, Thesaurus, Vocab
Strong Contender
🔍 Reference
4.8😐(328K ratings)
FreeAdsIn-App Purchases
#99in Reference
Dictionary.com: English Words screenshot 1
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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 All in one#3

Dictionary All in one by Md Shihab Uddin

Dictionary with explanation
Worth Considering
📚 Education
3.0(2 ratings)
FreeAdsIn-App Purchases
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Access definitions, synonyms, and antonyms for words across numerous languages. Features include a word of the day, search history, and favorites, with customizable settings. Easily switch between dictionaries to suit your needs.

More All In One Dictionary apps to explore

4
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
5
Merriam-Webster Dictionary+
Merriam-Webster Dictionary+
Merriam-Webster Dictionary+
Premium Ad-free Dictionary
$9.99

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.

Ad-free experience15,000+ premium entriesOffline dictionary access
🔍 Reference
(22K)
freemium
6
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
7
All English Dictionary
All English Dictionary
All English Dictionary
by ILHWAN CHO
Free

Access a comprehensive collection of English dictionaries and thesauruses in one place. Search words across multiple sources simultaneously, including Urban Dictionary, Merriam-Webster, and Oxford. Track your vocabulary progress with curated lists for standardized tests.

Simultaneous dictionary searchMultiple dictionary sourcesThesaurus integration
📚 Education
(4)
ad-supported
8
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
9
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
10
One Dictionary
One Dictionary
One Dictionary
Extensible offline dictionary
Free
🔍 Reference
(0)
11
All英語辞書 - English Dictionary
All英語辞書 - English Dictionary
All英語辞書 - English Dictionary
by ILHWAN CHO
Free

This app allows you to search multiple English and Japanese dictionaries simultaneously. It includes a wide range of English-to-English dictionaries and vocabulary lists for standardized tests. Save your search history and build your vocabulary.

Simultaneous dictionary searchEnglish ⇔ Japanese dictionariesEnglish ⇒ English dictionaries
🔍 Reference
(1)
ad-supported
12
Dictionary Universal
Dictionary Universal
Dictionary Universal
by Dmitry Zhuk
$5.99

Access a vast collection of dictionaries on your iPhone, iPod touch, and iPad. This app supports StarDict and Lingvo DSL formats, offering fast searches, morphology, fuzzy matching, and pronunciation. Organize dictionaries by language and save your favorites for quick access.

StarDict and Lingvo DSL supportFast search and fuzzy matchingMorphology support
🔍 Reference
(26)
free
13
Dixxnary-All in One Dictionary
Dixxnary-All in One Dictionary
Dixxnary-All in One Dictionary
by SKYRAAN TECHNOLOGIES OPC PRIVATE LIMITED
Free
🔍 Reference
(0)
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 and Thesaurus Pro
Dictionary and Thesaurus Pro
Dictionary and Thesaurus Pro
by TheFreeDictionary.com
$9.99

Access a comprehensive offline dictionary and thesaurus with extensive content in multiple languages. Explore definitions, synonyms, and specialized dictionaries for various fields. Enjoy an ad-free experience with features like word games and instant lookups.

Ad-free experienceOffline English dictionary and thesaurusOffline dictionaries in 13 languages
🔍 Reference
(2.6K)
paid
16
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
17
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
18
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
19
SkyDict
SkyDict
SkyDict
All-in-one Online Dictionary
Free

This app allows users to simultaneously search for word definitions across numerous online English dictionaries. It offers a seamless browsing experience with swipe gestures and includes a dark theme. Users can also look up words directly from other applications.

Simultaneous multi-dictionary lookupsSwipe to switch dictionariesDark theme support
🔍 Reference
(35)
free
20
English Dictionary *
English Dictionary *
English Dictionary *
Thesaurus and Vocabulary words
Free

Enhance your English vocabulary with a comprehensive offline dictionary and thesaurus. Access over 500,000 words, their meanings, synonyms, antonyms, and pronunciations. Perfect for students and professionals to improve language skills anytime, anywhere.

Offline word searchSynonyms and antonymsWord definitions
🔍 Reference
(1.2K)
subscription

FAQ about All In One Dictionary

What are the best all in one dictionary apps for iPhone?
All In One Dictionary tops our all in one dictionary apps ranking as of August 2026, with a 3.8-star average from 5 App Store ratings, and it's free to download.
Yes — 15 of the top all in one dictionary apps we rank are free to download, including All In One Dictionary and Dictionary.com: English Words.
All In One Dictionary has no ads and offers in-app purchases, according to its App Store listing as of August 2026.
We track 235+ all in one dictionary apps on the iOS App Store as of August 2026, ranked by rating, recency, and analysis of real user reviews.
All In One Dictionary supports over 80 languages, including major global languages like English, Spanish, French, Chinese, and German, as well as many others listed in the app's description.
The provided description does not specify offline functionality. However, features like camera and voice translation often require an internet connection for processing.