# E.J.C Science&Tech Dictionary — Chinese/English/Japanese terms

> Offline scientific and technical term dictionary for English, Japanese, and Chinese. (iPhone/iPad app by AOBO Co.,Ltd.)

- Source: https://appshunter.io/ios/app/ejc-science-and-tech-dictionary/id363371011 (this page in markdown: same URL + `.md`)
- Developer: [AOBO Co.,Ltd](https://appshunter.io/developer/310846199)
- Category: Reference, Education
- Price: $3.99
- Age rating: 4+
- Requires: iOS 15.6 · 67 MB
- Languages: American English, Japanese, Chinese (Simplified, China)
- Released: 2010-03-25
- Data updated: 2026-08-24
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/ejc-science-and-tech-dictionary/id363371011/reviews.md

## What is E.J.C Science&Tech Dictionary?

If your job involves Japanese/Chinese words in the field of Science & Technology, maybe this application can help you to finish your work quickly and correctly, because it is an application running on iPhone/iPod Touch,  not a heavy book, you can take it out, and look up your words quickly as long as you want to do.

This application collected 552,707 well-used words (English/Japanese/Chinese(s)) in the field of Science & Technology from various aspects, such as Machinery, Computer, Electronics, Engineering, Telecommunication, Chemistry, Energy, Biology and so on. we hope this application can give you a big help.

Features:
1, Easy to use and offline.
 Just input the word(English/Japanese/Chinese) in the searching field and the searching result will be displayed.
 User can set searching mode to prefix or partial. 
 Drag the screen up and new words in the searching result will be showed automatically.
2, Bookmark & history function.
 You can put the important word to bookmark by touching the '+' button on detail screen. 
 Every word you referenced will be add to history automatically.
3, English, Japanese, Chinese are supported on the detail screen.
 If a word has meaning in English, Japanese, Chinese at the same time, all the word will be showed on the detail screen.
 Tapping the word on detail screen, it will be inputed into searching field, so you can perform a new searching. 
4, Large volume.
There are 552,722 well-used words(English/Japanese/Chinese(s)) in this application, it can fulfill your needs in most case.

Supported language: English, Japanese, Chinese
 
Notice: 
1, Partial searching mode is faster than prefix mode in searching word of Chinese/Japanese.
2, This application only give a quick reference for a word in English and corresponding Japanese and Chinese, NOT the explanation of the word.
3, It is NOT TRUE that a word in English is always followed by the corresponding Japanese and Chinese. 
4, It takes more time in searching word of Japanese/Chinese than in English, and the latest device(3GS) always has a very faster response than the old one in searching operation.

## Key features

- Offline dictionary access
- English, Japanese, Chinese terms
- Search by prefix or partial match
- Bookmark and history functions
- Quick word lookups
- Large word database

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/ejc-science-and-tech-dictionary/id363371011/reviews.md

### 1/5 — Failed to start

*2017-01-04*

A big disappointment, didn't launch after installing. They still charged though

Rip off

## Frequently asked questions about E.J.C Science&Tech Dictionary

### What is E.J.C Science&Tech Dictionary?

E.J.C Science&Tech Dictionary is a reference application that provides quick lookups for scientific and technical terms in English, Japanese, and Chinese. It contains over 550,000 terms and functions offline.

### How many words are in E.J.C Science&Tech Dictionary?

The application contains a large volume of 552,707 well-used words in English, Japanese, and Chinese within the fields of Science & Technology.

### Can I use E.J.C Science&Tech Dictionary offline?

Yes, this application is designed to run offline on iPhone and iPod Touch, allowing you to look up words quickly whenever needed without an internet connection.

### Does E.J.C Science&Tech Dictionary provide explanations of words?

No, this application is intended as a quick reference for words and their corresponding terms in English, Japanese, and Chinese. It does not provide detailed explanations of the words.

### What languages does E.J.C Science&Tech Dictionary support?

The application supports English, Japanese, and Chinese terms. If a word has meanings in all three languages, they will all be displayed on the detail screen.

### How does the search function work in E.J.C Science&Tech Dictionary?

You can input a word in English, Japanese, or Chinese into the searching field. The search results can be set to prefix or partial matching. New words appear automatically as you scroll.

### What is the price of E.J.C Science&Tech Dictionary?

E.J.C Science&Tech Dictionary is a paid application priced at $3.99.

### How often is E.J.C Science&Tech Dictionary updated?

The latest version of E.J.C Science&Tech Dictionary is 1.73, which was last updated on June 23, 2025. This indicates a relatively recent update.

## Version history (last 5 releases)

### 1.73 — 2025-06-23

Supported the latest OS.

### 1.72 — 2022-04-02

Updated to latest SDK.

### 1.71 — 2019-02-21

Updated to support latest iOS.

### 1.7 — 2018-02-07

Updated to latest SDK, supported iPhoneX.

### 1.6 — 2015-07-09

Updated to support iOS8.0 and new devices.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-24.*