Comparison

Luminous E vs Oxford Dictionary & Thesaurus

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

Head to head
About

Luminous E

This comprehensive English-Japanese and Japanese-English dictionary app offers extensive vocabulary and grammar explanations. It includes audio pronunciations, search functionalities, and export options, making it a powerful tool for all English learners.

Highlights
  • Extensive vocabulary (approx. 100,000 entries each)
  • Audio pronunciations for words
  • Incremental search and spelling suggestions
  • Bookmark with notes
  • Export definitions and bookmarks
  • Daily vocabulary notifications
  • iPad multitasking and Drag & Drop support
Features
Read full description

ルミナス英和・和英辞典 (InApp購入版) This app is not free! For new users, an InApp purchase is required to activate the dictionary. Japanese language ability required. 英和・和英それぞれ約10万の豊富な収録語句に加え、アプリ独自に単語の英米音声ファイルを収録。もちろんiPhone・iPad両対応。大学入試からTOEIC®受験まで、全ての英語学習者にお薦めする学習用英和・和英辞典の「最強ツール」です。 【全体】 総収録語数は英和・和英各10万,用例は各 5 万以上。豊富な語彙だけでなく、文法や語法、ライティングのための解説も充実させた、英語学習辞典の定番。大学受験生から社会人まで全ての英語学習者・使用者にお勧めの最強ツール。 【英和】 日常用語はもちろん、時事用語、科学用語を豊富に収録し、成句や句動詞も充実。語彙だけでなく、詳細な文法・語法解説に加え、ライティングにも使える「コロケーション」や「言い換え」、語彙増強のための「単語の記憶」や「語源」など、学習・実用に役立つ情報が満載。英和辞典として初めてTOEIC®頻出2千語句を表示。 【和英】 「振り込め詐欺」「ニート」「認知症」から「源義経」「額紫陽花」「丑の時参り」まで広範な分野の語彙・慣用句・成句を採録。日本固有の風物・文化・固有名などには簡潔な英語の説明も施した。日本語的発想を自然な英語にするために不可欠な「発想指示」や学習者の間違えやすい点を分かりやすく解説した「語法」「日英比較」も充実。 ■ アプリケーションの特徴: * ロングマンシリーズの約90,000点の英米音声ファイルを収録 * 単語タップで表示される、便利なリンクメニュー * インクリメンタル検索(逐次検索)機能 * スペリングのサジェスト機能 * ワイルドカード検索機能 * 収録画像の拡大・縮小機能 * メモ付きブックマーク機能 * 語義やブックマークをメールやFacebook, Twitterなどに出力可能 * 自動履歴機能 * 書籍の付録部分を収録 * AI強化アナグラム生成機能 * "今日"とロックスクリーンのウィジェット * iCloudを利用したブックマーク機能 * 日替わり英単語の通知機能。(TOEIC®やTOEFL®の単語リスト付き) * 3D Touch 対応 * DarkMode 対応 * iPadのマルチスクリーンとDrag & Drop 対応 * iPhone 17 対応 * iOS12〜iOS26 完全対応 * iPhoneとiPodとiPadとmacOS 対応 ■ 外部辞書ハイパーリンク機能 * 「ロングマン現代英英辞典」や「アメリカンヘリテージ® 」など英英辞典へのリンク * 「Roget's II: 新類語辞典」へのリンク * 「ロングマン英和辞典」へのアプリケーションリンク * 「大辞林」「大辞泉」へのアプリケーションリンク (外部辞書は別途インストールが必要です) コピーライト: ルミナス英和辞典 (第2版)/ルミナス和英辞典 (第2版) © 2005, 2012 株式会社研究社

About

Oxford Dictionary & Thesaurus

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.

Highlights
  • 15 Oxford Dictionaries
  • Thesaurus integration
  • Audio pronunciations
  • Offline access
  • Camera search
  • Word of the Day
Features
Read full description

Trusted by millions of students, professionals, and language learners worldwide, Oxford Dictionary is built on content from Oxford Languages and gives you 18 dictionaries, over a million words, phrases, and definitions, plus translations between English and major languages, all in a single app. Whether you are preparing for exams, improving your writing, or expanding your vocabulary, Oxford Dictionary is your trusted language reference. ■ What can I use Oxford Dictionary for? • Find accurate word definitions in English, Spanish, French, and German • Check pronunciation • Discover English synonyms and antonyms • Learn word origins and etymology • Translate between English and major languages • Build vocabulary and improve writing • Use the dictionaries online and offline (offline with Premium) ■ How many dictionaries does Oxford Dictionary include? Oxford Dictionary includes 18 dictionaries: 5 monolingual (British English, American English, Spanish, French, and German) and 13 bilingual dictionaries pairing English with French, German, Spanish, Russian, Chinese, Italian, Hindi, Urdu, Portuguese, Japanese, Greek, Bulgarian, and Thai. ■ How do I find the meaning of a word? Search for any word in Oxford Dictionary to get trusted definitions, example usage, phrases, and word origins from Oxford Languages. ■ Does Oxford Dictionary work offline? Yes, with Premium. Download dictionaries to your device and search for words anytime, no internet connection needed. Ideal for travel, studying, or work. ■ Does Oxford Dictionary include a thesaurus? Yes. The built-in thesaurus gives you thousands of English synonyms and antonyms, helping you find the right word, avoid repetition, and improve your writing. With Premium, synonym lookups are unlimited. ■ Does Oxford Dictionary have audio pronunciation? Yes, with Premium. Recordings by native British and American English speakers help you speak with confidence, ideal for language learning and exam preparation. ■ Can I search for words even if I don't know the spelling? Yes. Use fuzzy search, wildcards (* and ?), autocomplete and auto-correction, voice search, camera search, and keyword lookup to find words quickly and easily. ■ Is Oxford Dictionary good for IELTS, TOEFL, SAT, or ACT preparation? Yes. Oxford Dictionary provides accurate definitions, example usage in context, and a broad vocabulary range for students preparing for major English proficiency exams worldwide. ■ How can I build my vocabulary with Oxford Dictionary? Save words to Favorites, organize them into folders and sync them across your devices, revisit Recent searches, and discover a new word every day with Word of the Day. ■ Should I use an AI chatbot instead of a dictionary? Students and professionals continue to rely on dictionaries for formal definitions and correct word usage. Oxford Dictionary provides definitions backed by Oxford Languages' rigorous editorial process, not AI-generated approximations. When accuracy matters, Oxford Dictionary remains the trusted reference. ■ Who is Oxford Dictionary for? Students, writers, professionals, academics, language learners, and word enthusiasts: anyone who needs a reliable multilingual dictionary at every level. ■ What do you get with Premium? • Offline mode and fast search • Audio pronunciation by native speakers • Unlimited synonym and antonym lookups • Ad-free experience ■ Why choose Oxford Dictionary? Oxford Dictionary combines the language expertise of Oxford Languages with powerful search, 18 dictionaries, and practical vocabulary tools, all in one app. Download Oxford Dictionary today. Website: https://mobisystems.com/oxford-dictionary Facebook: https://www.facebook.com/oxforddictionaryapp Instagram: https://www.instagram.com/oxford_dictionary_app TikTok: https://www.tiktok.com/@oxforddictionaryapp X: https://x.com/OxfordD_app Privacy Policy: https://mobisystems.com/privacy-policy Terms of Use: https://mobisystems.com/terms-of-use

Screenshots

Luminous E4 screens
Oxford Dictionary & Thesaurus4 screens

Verdict

The call

The clearest difference is rating: Oxford Dictionary & Thesaurus at 4.6 against Luminous E's 4.0. Oxford Dictionary & Thesaurus also leads on review sentiment (51% vs 24%) and ratings volume (29K vs 6). Luminous E's advantage is iOS requirement (12.0 vs 15.0). On price, update cadence, ads and in-app purchases 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

Both are free to download. Luminous E sells 1 one-off in-app purchase and Oxford Dictionary & Thesaurus sells 8 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Oxford Dictionary & Thesaurus holds the better App Store score, 4.6 against 4.0. That said, the two scores are not equally well evidenced: Oxford Dictionary & Thesaurus has 29K ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 24% of Luminous E's written reviews are positive against 51% of Oxford Dictionary & Thesaurus's.

UpkeepUpdate frequency

Luminous E ships an update every 5 weeks, Oxford Dictionary & Thesaurus monthly. The most recent releases landed on October 28, 2026 and November 3, 2026 respectively.

Scorecard5 real differences · 6 level
Luminous E versus Oxford Dictionary & Thesaurus: the parameters behind the verdict, then further details
ParameterLuminous EOxford Dictionary & Thesaurus
PriceFreeFree
Rating4.0 (6 ratings)4.6 (29K ratings) — better
Positive reviews23.5% of reviews51.2% of reviews — better
Number of ratings629K — better
Update frequencyEvery 5 weeksMonthly — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
Best chart rank—#98 — better
DevicesiPhone, iPad, iPod, Mac — betteriPhone, iPad, iPod
Requires iOS12.0 — better15.0
Further details — not scored
Size1021 MB147 MB
Age rating12+4+
DeveloperEnglish Channel, Inc.MobiSystems, Inc.

Customer experience

Luminous E

All ratings6 ratings
Positive66.7%
Neutral16.7%
Negative16.7%
Written reviews17 reviews
Positive23.5%
Neutral23.5%
Negative52.9%

Oxford Dictionary & Thesaurus

All ratings29,267 ratings
Positive91.1%
Neutral3.2%
Negative5.7%
Written reviews1,115 reviews
Positive51.2%
Neutral8.3%
Negative40.5%

Bugs and requests

Luminous E

Not enough reviews yet to summarise bugs or requests.

Oxford Dictionary & Thesaurus

Reported bugs

4 issues
  • Favorites folder disappearing after device restart
  • Inconsistent behavior when looking up words
  • Frequent crashes and freezes
  • Inability to restore premium purchases on new devices

Requested features

6 requests
  • Improved formatting and typography for definitions
  • Better organization of features and information
  • More advanced search and filtering options
  • Ability to sync favorites across devices
  • More challenging and interesting 'word of the day' selections
Show 1 more
  • Improved offline dictionary with more comprehensive coverage

In-app purchases

1 purchases

Luminous E

One-time1
  • Luminous activation$14.99
8 purchases

Oxford Dictionary & Thesaurus

Subscriptions6
  • Monthly Subscription ODE1 Month trial$2.991 Month
  • Monthly Subscription1 Month trial$2.991 Month
  • Oxford Dictionary Premium2 variants$4.997 Days
Show 3 more
  • ODE Annual Subscription Promo$9.991 Year
  • Annual Subscription ODE$19.991 Year
  • Oxford Dictionary Premium3 Days trial4 variants$39.991 Year
One-time2
  • Oxford Dictionary of English$4.99
  • Oxford Dictionary of English$9.99

Questions

Is Luminous E free?
Luminous E is free to download, with in-app purchases available.
Is Oxford Dictionary & Thesaurus free?
Oxford Dictionary & Thesaurus is free to download, with in-app purchases available.
Which has better reviews, Luminous E or Oxford Dictionary & Thesaurus?
Oxford Dictionary & Thesaurus is rated higher. Luminous E averages 4.0 out of 5 from 6 ratings, while Oxford Dictionary & Thesaurus averages 4.6 from 29K ratings.
Do Luminous E or Oxford Dictionary & Thesaurus have ads?
Neither Luminous E nor Oxford Dictionary & Thesaurus shows ads.
Which is updated more often, Luminous E or Oxford Dictionary & Thesaurus?
Luminous E ships an update every 5 weeks, and Oxford Dictionary & Thesaurus monthly. Most recently, Luminous E was updated on October 28, 2026 and Oxford Dictionary & Thesaurus on November 3, 2026.

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