Comparison

IT and Computer Dict (Jpn vs IT用語図鑑【公式】

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

IT and Computer Dict (Jpn

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.

Highlights
  • Over 260,000 IT and computer terms
  • English-Japanese and Japanese-English dictionaries
  • Offline access to all data
  • Search history
  • Bookmark important terms
  • User interface in English and Japanese
Features
Read full description

The Dictionary of IT and Computer Terms, compiled by The CJK Dictionary Institute in Japan, is the only application on any mobile platform that provides comprehensive coverage of information technology terminology. Do you know how to say "mobile optical tracking unit" in Japanese? With this application you can immediately find the equivalent of 移動式光学追跡装置. At home, at work and on the go, translators, students and professionals of information technology will often encounter technical terms related to programming, image processing, information security and the like for which they need to quickly look up their Japanese or English translations. The Dictionary of IT and Computer Terms, compiled by The CJK Dictionary Institute in Japan, is the only application on any mobile platform that provides comprehensive coverage of information technology terminology. This application, which provides a user interface in both Japanese and English, includes both English-Japanese and Japanese-English dictionaries that provide access to a total of approximately 260,000 technical terms. While several Japanese-English general vocabulary dictionaries are available for the iPhone, there are few specialized dictionaries that meet the specific needs of professionals, translators and information technology students, while those that are available are prohibitively expensive and of limited coverage. With this application, you get a database of technical terms with extensive coverage at your fingertips for a reasonable price. Please note: This app contains translation equivalents for each term, not explanations of each term's meaning. FEATURES * Both dictionaries combined contain over 260,000 entries * Designed for both English and Japanese users * Covers various subdomains including programming, image processing, information security, and much more * All this data is instantly accessible right on your device - no Internet connection required * What was that word you just looked up? Check the history! * Easy bookmarking puts important terms a tap away * Clean, easy to use interfaces in both English and Japanese ABOUT CJKI The CJK Dictionary Institute is directed by Jack Halpern, editor of the New Japanese-English Character Dictionary and The Kodansha Kanji Learner's Dictionary, now standard reference works. Be sure to check out our other dictionary apps in the CJKI Technical Dictionaries Series, including: Dictionary of Mechanical Engineering Dictionary of Business and Economics Dictionary of Medicine and Life Sciences Dictionary of Chemical Terms Dictionary of Electrical and Electronic Engineering

About

IT用語図鑑【公式】

This app provides a visual dictionary of IT terms, featuring illustrations, related stories, and usage examples. It offers 100 terms for free and unlocks all keywords through in-app purchases. It's designed to help users understand and remember the ever-evolving IT vocabulary.

Highlights
  • Illustrated IT terms
  • Genre-based categorization
  • Related stories and anecdotes
  • Usage examples
  • In-app content purchases
  • Book purchase bonuses
Features
Read full description

書籍『IT用語図鑑』がアプリ化。 現在、ITに関わる仕事をしている人やITに興味を持っている人が知っておきたいキーワードを厳選し、ジャンル別に図鑑形式で掲載しています。 次々と登場するIT用語のすべてを覚えるのは大変ですし、同じような意味の言葉や同じ綴りの略語もたくさん存在します。 そこで、『IT用語図鑑』では用語のイメージがわくイラストや、用語に関連する話、用語の使用例などを掲載し、さまざまな角度から説明しています。 書籍で紹介している256個のキーワードのうち、100個について無料で掲載。 さらに、アプリ内でコンテンツを購入することで、すべてのキーワードを閲覧できます。 書籍には「用語に関連する話」や「コラム」なども収録しており、書籍の購入特典もありますので、合わせてお読みください。

Screenshots

IT and Computer Dict (Jpn4 screens
IT用語図鑑【公式】4 screens

Verdict

The call

The clearest difference is review sentiment: IT用語図鑑【公式】 at 50% against IT and Computer Dict (Jpn's 0%. IT用語図鑑【公式】 also leads on price (Free vs $1.99) and update cadence (every 3 days vs every 23 months). IT and Computer Dict (Jpn's advantage is in-app purchases (none vs 1) and iOS requirement (9.0 vs 17.0). On ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

IT用語図鑑【公式】 is free to download; IT and Computer Dict (Jpn costs $1.99 up front. IT用語図鑑【公式】 sells 1 one-off in-app purchase. IT and Computer Dict (Jpn asks for nothing beyond the download.

UpkeepUpdate frequency

IT and Computer Dict (Jpn ships an update every 23 months, IT用語図鑑【公式】 every 3 days. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

Scorecard6 real differences · 4 level
IT and Computer Dict (Jpn versus IT用語図鑑【公式】: the parameters behind the verdict, then further details
ParameterIT and Computer Dict (JpnIT用語図鑑【公式】
Price$1.99Free — better
Rating5.0 (1 ratings) — better—
Positive reviews0.0% of reviews50.0% of reviews — better
Number of ratings1 — better—
Update frequencyEvery 23 monthsEvery 3 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS9.0 — better17.0
Further details — not scored
Size87 MB40 MB
Age rating4+4+
DeveloperCJKIToshikatsu Masui

Customer experience

IT and Computer Dict (Jpn

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

IT用語図鑑【公式】

Written reviews2 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

In-app purchases

None

IT and Computer Dict (Jpn

No in-app purchases

1 purchases

IT用語図鑑【公式】

One-time1
  • すべてのキーワードを購入する$2.99

Questions

Is IT and Computer Dict (Jpn free?
IT and Computer Dict (Jpn costs $1.99, with no in-app purchases.
Is IT用語図鑑【公式】 free?
IT用語図鑑【公式】 is free to download, with in-app purchases available.
Do IT and Computer Dict (Jpn or IT用語図鑑【公式】 have ads?
Neither IT and Computer Dict (Jpn nor IT用語図鑑【公式】 shows ads.
Which is updated more often, IT and Computer Dict (Jpn or IT用語図鑑【公式】?
IT and Computer Dict (Jpn ships an update every 23 months, and IT用語図鑑【公式】 every 3 days. Most recently, IT and Computer Dict (Jpn was updated on November 2, 2026 and IT用語図鑑【公式】 on November 3, 2026.

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