Best Computer Science Dictionary Apps

170+ iOS apps curated and reviewed

4.4 avg rating
15 free apps
Updated July 2026

Out of 170+ computer science dictionary apps on iOS, 15 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.

Top Picks for Computer Science Dictionary

Computer Science Dictionary#1

Computer Science Dictionary by Shital Gorasiya

Learn Computer Basic
Editor's Choice
📚 Education
4.7(3 ratings)
FreeIn-App Purchases
Computer Science Dictionary screenshot 1
Computer Science Dictionary screenshot 2
Computer Science Dictionary screenshot 3
Computer Science Dictionary screenshot 4
Computer Science Dictionary screenshot 5
Computer Science Dictionary screenshot 6

This app offers a comprehensive offline dictionary for computer science and engineering students, featuring over 4,200 terms, formulas, historical insights, and quizzes. Explore computer history, save favorite terms, and test your knowledge with interactive challenges.

Merriam-Webster Dictionary#3

Merriam-Webster Dictionary by Merriam-Webster, Inc.

Worth Considering
🔍 Reference
4.8😊(320K ratings)
FreeAdsIn-App Purchases
#39in 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

Room to Improve

  • 🐛 Ads can be intrusive
  • 🐛 Difficulty closing ads
  • 🐛 Repetitive game questions

More Computer Science Dictionary apps to explore

4
IT and Computer Dict (Jpn-Eng)
IT and Computer Dict (Jpn-Eng)
IT and Computer Dict (Jpn-Eng)
by CJKI
$1.99

This reference app provides a comprehensive Japanese-English and English-Japanese dictionary for IT and computer terms. It offers quick lookups for professionals, students, and translators, with over 260,000 entries accessible offline.

Over 260,000 IT and computer termsEnglish-Japanese and Japanese-English dictionariesOffline access to all data
🔍 Reference
(1)
paid
5
Computer Dictionary English
Computer Dictionary English
Computer Dictionary English
Listen sound, Work offline
Free

This free reference app provides definitions for 15,000 computer-related terms with offline English audio pronunciation. Users can search for words, hear their meanings, and even type custom text for pronunciation. It offers customizable voice accents, speeds, and pitches.

15,000 computer termsOffline English audio pronunciationSearch word meanings
🔍 Reference
(12)
free
6
Etymonline English Dictionary
Etymonline English Dictionary
Etymonline English Dictionary
Dictionary to Build Vocabulary
Free

Explore the origins and history of English words with this comprehensive dictionary app. It offers instant search, related word suggestions, and an offline mode for premium users. Enhance your vocabulary and understanding of word roots.

Word origin explorationInstant search with suggestionsRelated words by root
📚 Education
(11K)
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
(11K)
free with in-app purchases
8
Youdao Dictionary
Youdao Dictionary
Youdao Dictionary
Best Chinese Translator
Free

This app offers comprehensive translation and dictionary services across 109 languages. It features advanced AI-powered translation, AR and photo translation, real-time speech translation, and offline capabilities. It also includes specialized dictionaries and AI tools for learning and content summarization.

109 Language TranslationAI-Powered Translation & SummarizationAR & Photo Translation
🔍 Reference
(17K)
free with in-app purchases
9
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
(14K)
free with in-app purchases
10
Computer Science & IT English
Computer Science & IT English
Computer Science & IT English
Information technology course
Free

Master English for IT and Computer Science with this app. Build technical vocabulary, translate articles, and learn grammar with interactive tools. Access books and create a personal dictionary to advance your tech career.

Build IT and tech vocabularyTranslate technical articlesRead books with interactive features
📚 Education
(5)
free with in-app purchases
11
IT/ Computer Dict (Chin-Eng)
IT/ Computer Dict (Chin-Eng)
IT/ Computer Dict (Chin-Eng)
by The CJK Dictionary Institute, Inc.
$3.99

This app offers a comprehensive Chinese-English dictionary specifically for IT terms, featuring over 133,000 entries. It's designed for IT professionals, translators, and students needing quick access to technical vocabulary without an internet connection.

Over 133,000 IT termsEnglish and Chinese interfacesCovers programming, security, image processing
🔍 Reference
(2)
paid
12
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
(238)
paid
13
IT/Computer Dict (Jpn-Chi)
IT/Computer Dict (Jpn-Chi)
IT/Computer Dict (Jpn-Chi)
by The CJK Dictionary Institute, Inc.
$3.99
🔍 Reference
(0)
14
Advanced Dictionary&Thesaurus
Advanced Dictionary&Thesaurus
Advanced Dictionary&Thesaurus
English dictionary with Audio
Free

This comprehensive English dictionary and thesaurus offers precise definitions, synonyms, antonyms, and related words. It features intelligent search tools, offline audio, and customizable themes to enhance your language learning experience.

140,000+ definitionsSynonyms, antonyms, and related wordsOffline audio pronunciation
🔍 Reference
(4.3K)
free with in-app purchases
15
Kurdish Dictionary - Dict Box
Kurdish Dictionary - Dict Box
Kurdish Dictionary - Dict Box
English Kurdish Translation
Free

This app serves as a comprehensive English to Kurdish and Kurdish to English dictionary and translator. It offers offline functionality, pronunciation, definitions, and the ability to translate words directly within other applications. Users can also find related words, phrases, and even use image search for a richer learning experience.

Offline translation and pronunciationExtensive word and expression databaseIn-app word translation
🔍 Reference
(14K)
free with in-app purchases
16
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
17
Yandex Translate
Yandex Translate
Yandex Translate
Translator & dictionary
Free

Translate text between over 100 languages, both online and offline. Features include photo translation, voice input, a built-in dictionary with usage examples, and website translation. Save your favorite translations and access your history easily.

Offline translation for 10+ languagesTranslate text from photosVoice input and output
🔍 Reference
(7.3K)
free
18
Computer Dictionary - PC Users
Computer Dictionary - PC Users
Computer Dictionary - PC Users
Offline Computer Terms
$2.99
📚 Education
(0)
19
Ultimate Lac Viet Dictionary
Ultimate Lac Viet Dictionary
Ultimate Lac Viet Dictionary
by Ho Cong Chien
Free

This comprehensive dictionary app offers a vast vocabulary of approximately 300,000 words and phrases. It provides detailed entries including pronunciation, transcription, meanings, and example sentences. Features like cross-references and a daily "Word of the Day" enhance language learning.

300,000+ words and phrasesPronunciation and transcriptionExample sentences
🔍 Reference
(20)
free with in-app purchases
20
Dictionary
Dictionary
Dictionary
in Widget
Free

Instantly look up words from your iOS Home Screen without opening the app. Get definitions in seconds to aid studying, reading, or satisfying curiosity, keeping you focused and learning.

Home Screen widget for instant lookupsNo app launch requiredQuick definitions
🔍 Reference
(4)
ad-supported

Related searches