E.J.C Science&Tech Dictionary vs LDOCE (InApp)
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
E.J.C Science&Tech Dictionary
This application provides a quick reference for scientific and technical terms in English, Japanese, and Chinese. It offers offline access to a large database of words, allowing for fast lookups and easy navigation through search history and bookmarks.
- Offline dictionary access
- English, Japanese, Chinese terms
- Search by prefix or partial match
- Bookmark and history functions
- Quick word lookups
- Large word database
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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.
LDOCE (InApp)
This comprehensive English learner's dictionary offers over 230,000 words and meanings, with integrated thesaurus and collocations. It provides clear definitions, real-world examples, and pronunciation files to enhance fluency and vocabulary.
- 230,000+ words, phrases, and meanings
- Integrated Thesaurus and Collocations Dictionary
- 165,000+ real-world example sentences
- Pronunciation files in UK & US accents
- Clear definitions using a 2,000-word vocabulary
- Academic Word List and Register Notes
- Wildcard and spelling suggestion searches
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This app is not free! An InApp purchase is required to activate the dictionary. ________________________________ Longman's flagship learner’s dictionary, fully updated and now with integrated Thesaurus and Collocations Dictionary ________________________________ Longman Dictionary of Contemporary English - For Advanced Learners © Longman's flagship learner’s dictionary is now available as an iPhone/iPod touch application. Improve your fluency in English with the most up-to-date learner's dictionary at your fingertips. Now with integrated Thesaurus and Collocations Dictionary. Dictionary details: ● 230,000 words, phrases, and meanings - more than any other learner's dictionary ● 165,000 examples based on real, natural English from the Longman Corpus Network show how English is really used ● 10,000 encyclopedic entries -people and places. ● 5,000 verb conjugation tables ● Clear definitions. Written using only 2,000 common words. ● Most frequent 3,000 words in spoken & written English highlighted for you ● Register Notes focus on the differences between spoken and written English. ● The Academic Word List is highlighted to help you improve your essays and presentations. ● Grammar and warning notes ensure that you avoid the most common errors. ● Integrated Collocations Dictionary. Over 80,000 collocations will improve your fluency. ● Integrated Thesaurus. Over 20,000 synonyms, antonyms, and related words will improve your vocabulary range. ● 83,000 pronunciation files —all headwords in both UK & US accents. PLUS ● another 86,000 recorded example sentences (via external links or bulk download) Making this the largest resource of English available on ANY mobile platform! ________________________________ Application Features: ● full contents of the print dictionary - PLUS additional collocations, synonyms & word histories ● complete front matter and additional resources ● unique three-way cross-referencing search ● real-time progressing look-up ● wildcard pattern searches -with * ? ● an "AI Teacher" for deeper explanations or help for ESL students in 98 languages ● spelling suggestion dictionary included ● hyperlinking directly to meanings & appendices ● example sentence search ● search on idioms and phrasal verbs ● search on synonym and "sign-post" meanings ● an "AI Teacher" for deeper explanations or help for ESL students in 98 languages ● Bookmarks with folders and editable notations ● Bookmark syncing across devices via iCloud ● Flashcards to test yourself ● automatic history listing ● Teacher's resources in PDF for printing or email ● Evernote posts with the full layout for definitions ● full layout in emails, Facebook and printing ● -plus Twitter & Sina Weibo ● "Word-of-the-Day" sets including TOEIC® & TOEFL® ● iPad Pro SplitView and Drag & Drop ● "Today" & LockScreen widgets ● "Share" extension to search inside other apps ● "LDOCE Broadcast" - search to a second device or iPad SplitView ● Open to search with Siri ● Supports Apple Intelligence ● search from other applications via a public API ● OS-independent app localization ● iPad Pro multi-screen and Drag & Drop ● Dyslexic mode and VoiceOver support ● DarkMode & 3D Touch support ● Supports iOS 12 through to iOS 26 ● iPhone, iPod, iPad and macOS support ● complete offline use ________________________________ The ultimate learner's resource of the English language for use anywhere and anytime. Copyright: Longman Dictionary of Contemporary English © Pearson Education Limited 2009, 2011, 2015
Screenshots
Verdict
The clearest difference is price: LDOCE (InApp) at Free against E.J.C Science&Tech Dictionary's $3.99. LDOCE (InApp) also leads on review sentiment (40% vs 0%) and update cadence (every 5 weeks vs every 13 months). E.J.C Science&Tech Dictionary's advantage is in-app purchases (none vs 5) and ads (none vs shown). On device support and iOS requirement 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
LDOCE (InApp) is free to download; E.J.C Science&Tech Dictionary costs $3.99 up front. LDOCE (InApp) sells 5 in-app purchases, starting at $2.99 per month. E.J.C Science&Tech Dictionary asks for nothing beyond the download.
E.J.C Science&Tech Dictionary ships an update every 13 months, LDOCE (InApp) every 5 weeks. The most recent releases landed on October 12, 2026 and October 22, 2026 respectively.
| Parameter | E.J.C Science&Tech Dictionary | LDOCE (InApp) |
|---|---|---|
| Price | $3.99 | Free — better |
| Rating | — | 4.4 (1.2K ratings) — better |
| Positive reviews | 0.0% of reviews | 40.4% of reviews — better |
| Number of ratings | — | 1.2K — better |
| Update frequency | Every 13 months | Every 5 weeks — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Free with in-app purchases — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 15.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 67 MB | 1.3 GB |
| Age rating | 4+ | 12+ |
| Developer | AOBO Co.,Ltd | English Channel, Inc. |
Customer experience
E.J.C Science&Tech Dictionary
LDOCE (InApp)
Bugs and requests
E.J.C Science&Tech Dictionary
Not enough reviews yet to summarise bugs or requests.
LDOCE (InApp)
Reported bugs
5 issues- App crashes after iOS updates
- Restore purchase feature not working
- Blank screens when searching for words
- Offline content not downloading properly
- Compatibility issues with newer devices
Requested features
5 requests- Integrate with other dictionary apps
- Add more example sentences and usage notes
- Implement dark mode and customization options
- Improve iCloud sync for bookmarks and history
- Provide better customer support and communication
In-app purchases
E.J.C Science&Tech Dictionary
No in-app purchases
LDOCE (InApp)
- LDOCE Dictionary$2.991 Month
- Full-text Search activationFree
- Example Sounds download activation$0.99
- Longman Activator Thesaurus$7.99
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- LDOCE5 activation$24.99
Questions
Is E.J.C Science&Tech Dictionary free?
Is LDOCE (InApp) free?
Do E.J.C Science&Tech Dictionary or LDOCE (InApp) have ads?
Which is updated more often, E.J.C Science&Tech Dictionary or LDOCE (InApp)?
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