LingoDeer vs GOIKOI 英単語
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
LingoDeer
Master new languages with structured, interactive lessons designed by teachers. Progress from basic alphabet to conversational fluency in over 20 languages, including Korean, Japanese, and Spanish. Practice speaking, listening, and writing with native speaker audio and engaging exercises.
- Short, interactive lessons
- Clear learning path
- Native speaker audio
- Offline learning
- Grammar tips and notes
- Flashcards and quizzes
- Real-life conversation practice
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#1 app for learning Asian languages and more! Over 20 million people choose to learn with LingoDeer. Why? Our structured lessons created by language teachers make learning easy and effective. From the alphabet, LingoDeer will get you to a conversational level in 20 languages: Korean, Japanese, Chinese, Arabic, French, German, Greek, Hindi, Indonesian, Italian, Malay, Polish, Brazilian Portuguese, Russian, Spanish(Latin American or European), Thai, Turkish, Ukrainian, Vietnamese, and English. Download LingoDeer Today! ⎓⎓⎓⎓⎓⎓⎓⎓⎓⎓⎓⎓⎓⎓⎓⎓⎓⎓⎓⎓ What will you get on LingoDeer? ※ Short, interactive lessons Easy 5-min lessons that fit into your daily plan ※ Clear learning path Each course is tailored to your target language ※ Customized for Asian languages Read & write in a unique alphabet system like Korean or Japanese ※ Better understanding of the grammar Tips & notes within lessons to help you build sentences confidently ※ Listen, imitate, and speak Studio-recorded audio from native speakers ※ Reinforce what you learn Flashcards, quizzes, target training, and more ※ Offline learning Take lessons everywhere you go Powerful features you'll love: • Fluent: real-life conversations! Practice reading, writing, listening, speaking, and get cultural tips as you learn. • Travel Phrasebook: audio phrasebook! Get ready for your trip to your dream country. • Character Drill: writing practices for Japanese kanji and Chinese characters. • Story: mini stories with captions! Expand what you learned in lessons. • Knowledge Cards: printable grammar flashcards! Keep essential grammar concepts at your desk. *Fluent is only available for Japanese, Korean, Chinese, Spanish, and French courses at the moment. ⎓⎓⎓⎓⎓⎓⎓⎓⎓⎓⎓⎓⎓⎓⎓⎓⎓⎓⎓⎓ Find tips, guides, and resources on language learning: ※ LingoDeer Blog: https://blog.lingodeer.com ※ YouTube: https://www.youtube.com/lingodeer Come chat with us on social media! Follow us for language learning advice, support, and memes: ※ Instagram: https://www.instagram.com/lingodeerapp ※ Facebook: https://www.facebook.com/LingoDeer ※ Twitter: https://twitter.com/lingodeer ⎓⎓⎓⎓⎓⎓⎓⎓⎓⎓⎓⎓⎓⎓⎓⎓⎓⎓⎓⎓ You will need a subscription in order to get full access to all courses and features. The subscription price starts at $14.99/month. Prices are in US dollars, may vary by country, can be converted to local currency depending on the country of residence, and are subject to change without notice. Subscription automatically renews unless auto-renew is turned off at least 24 hours before the end of the current period. Your iTunes account will be automatically charged at the same price for renewal within the 24-hour period prior to the end of the current payment period unless you change your subscription preferences in your iTunes Account Settings. When a subscription is canceled, access to the app's courses and features will expire at the end of the current payment period. Any unused portion of a free trial period, if offered, will be forfeited when you purchase a LingoDeer subscription, where applicable. - Terms of Use: https://www.lingodeer.com/terms-conditions-html - Privacy Policy: https://www.lingodeer.com/privacypolicy-html CONTACT US: Got ideas you want to share or feedback for the app? Email us at hi@lingodeer.com ⎓⎓⎓⎓⎓⎓⎓⎓⎓⎓⎓⎓⎓⎓⎓⎓⎓⎓⎓⎓ Real reviews from the LingoDeer community: "This has been helping me study Japanese way better than any book can!" "LingoDeer is worth every penny and more, it is an essential tool in the shed for anyone learning any of their offered languages, in or out of a classroom." YOUR JOURNEY TO FLUENCY STARTS HERE: • Learn Korean • Learn Japanese • Learn Mandarin Chinese • Learn Arabic • Learn French • Learn German • Learn Greek • Learn Hindi • Learn Indonesian • Learn Italian • Learn Malay • Learn Polish • Learn Brazilian Portuguese • Learn Russian • Learn Spanish (Latin American or European) • Learn Thai • Learn Turkish • Learn Ukrainian • Learn Vietnamese • Learn English
GOIKOI 英単語
Learn English vocabulary in context with over 1.5 million audio-supported example sentences from movies and dramas. Improve your understanding of word nuances and build a strong vocabulary network for exams like Eiken and TOEIC.
- Learn vocabulary in context
- 1.5M+ audio-supported example sentences
- Vocabulary network for exponential growth
- AI-powered adaptive learning plans
- Shadowing with AI pronunciation feedback
- Supports Eiken, TOEIC, and university exams
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語彙は、文脈の中で覚えたほうが記憶に残りやすいって知ってますか?GOIKOIなら、映画やドラマから厳選した150万以上の音声付き例文で学べるので、単語のニュアンスまでしっかりイメージできます。誰でも、まるで上級者のように英単語を「文脈ごと」にラクに身につけられます。 語彙は文脈の中で提示されたほうが記憶に残りやすいことが、言語習得に関する研究でも明らかになっています(Schmitt, 2000; Nation, 2001)。 単語をひとつひとつバラバラに覚えるのは、脳の自然な記憶プロセスに反しています。 言語は単語帳の中で覚えるのではなく、意味のある形で実際に使われてこそ、真の力を発揮します。 今すぐ、革新的な英語学習を体験しましょう! ◈ 英検®、大学受験、TOEIC®にも完全対応! 英検®、大学受験、TOEIC®はもちろん、中学・高校英語の基礎学習までしっかりカバーします。 出題頻度と難易度に基づく単語集で、最短ルートでのゴールを目指しましょう! ◈ 語彙ネットワークで、「断片的な記憶」をひとつのつながりに 派生語・類義語・対義語・英米綴りなどが、まるで地図のようにつながり、語彙を指数的に向上させることができるため、効率よく、かつ深く定着させるための構造的な学習ができます。 ◈ 英語4技能の習得も視野に入れた設計 スペルチェックやAIの発音評価付きシャドーイングなど、単語の理解を実践につなげる機能が充実しています。 聞き流し・書き取りなどの高機能も、自分のスタイルに合わせて自由に使えます。 ◈ AI×アルゴリズム、次世代の記憶プラン 復習アルゴリズムは、単なる忘却曲線やSuperMemo理論にとどまらず、ユーザーの進捗に合わせた柔軟な学習プランを提供可能です。 GOIKOI では、単語の難易度・出題頻度・学習履歴など多角的なデータを組み合わせ、一人ひとりに最適化された「進化型の記憶プラン」をAIが提案します。 【こんな人におすすめ】 - TOEIC®や英検®でスコアアップを目指している - 覚えた単語を、実際の会話や文章で使えるようにしたい - 英語の映画やドラマを字幕なしで楽しめるようになりたい - ネイティブの英語を聞き取れるようになりたいし、発音ももっと自然にしたい - テクノロジーを活用して、もっと効率よく学びたい 今すぐ無料で GOIKOI を体験しよう! 初めてご利用の方は、Pro機能をすべて使える、3日間の無料体験つきです。 支払い情報の登録や解約手続きは一切不要で、体験期間が終わると自動的に無料版に切り替わるので安心してご利用いただけます。 まずはお気軽に体験してみてくださいね! *英検®は、公益財団法人日本英語検定協会の登録商標です。このアプリやサービスは、ETSおよび公益財団法人日本英語検定協会による承認や提携を受けたものではありません。 *TOEIC is a registered trademark of Educational Testing Service (ETS) in the United States and other countries. This app is not approved or endorsed by ETS. 有料プランについて - 本アプリには「月間プラン」「年間プラン」の2つの定期購読プランがあります。 - 定期購読は自動継続購読になります。購読期間終了の24時間前までに解約すれば、自動更新を停止できます。 - 解約手続きはアプリ内からはできません。「設定」アプリの「サブスクリプション」から行えます。 - アプリを削除するだけでは解約されませんのでご注意ください。 - お支払いは Apple アカウントに請求されます。 サブスクリプションの解約方法 1. 「設定」アプリを開きます。 2. 自分の名前をタップします。 3. 「サブスクリプション」をタップします。 4. 管理したいサブスクリプションをタップします。 5. 「サブスクリプションをキャンセル」をタップします。 ▶ 利用規約 https://goikoi.com/terms-of-use ▶ プライバシーポリシー https://goikoi.com/privacy-policy
Screenshots
Verdict
The clearest difference is ratings volume: LingoDeer at 28K against GOIKOI 英単語's 5. LingoDeer also leads on chart position (#161 vs unranked). GOIKOI 英単語's advantage is rating (5.0 vs 4.7) and review sentiment (89% vs 78%). 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
Both are free to download. LingoDeer sells 10 in-app purchases, starting at $14.99 per month and GOIKOI 英単語 sells 2 in-app purchases, starting at $11.99 per month. Whichever you choose, the download price is not the number that matters.
GOIKOI 英単語 holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: LingoDeer has 28K ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 78% of LingoDeer's written reviews are positive against 89% of GOIKOI 英単語's.
LingoDeer ships an update every 3 weeks, GOIKOI 英単語 every 5 weeks. The most recent releases landed on November 10, 2026 and November 8, 2026 respectively.
| Parameter | LingoDeer | GOIKOI 英単語 |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (28K ratings) | 5.0 (5 ratings) — better |
| Positive reviews | 77.7% of reviews | 89.3% of reviews — better |
| Number of ratings | 28K — better | 5 |
| Update frequency | Every 3 weeks — better | Every 5 weeks |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Freemium |
| Best chart rank | #161 — better | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 214 MB | 111 MB |
| Age rating | 4+ | 9+ |
| Developer | LingoDeer Co, Ltd. | OBLADI COOPERATION |
Customer experience
LingoDeer
GOIKOI 英単語
Bugs and requests
LingoDeer
Reported bugs
4 issues- Progress bar not updating correctly
- Incorrect answers sometimes marked as correct
- Inability to resume lessons after app update
- Keyboard issues when typing answers
Requested features
5 requests- Allow typing answers instead of just selecting
- Provide feedback on pronunciation accuracy
- Improve spaced repetition for vocabulary review
- Add more languages, especially less common ones
- Implement a community feature to connect with other learners
GOIKOI 英単語
Not enough reviews yet to summarise bugs or requests.
In-app purchases
LingoDeer
- Multilingual Pass - Monthly$14.991 Month
- Multilingual Pass - Quarterly$34.993 Months
- Multilingual Pass - 6 Months$83.996 Months
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- Multilingual Pass (Annual)$95.991 Year
- Multilingual Pass (Annual)7 Days trial$95.991 Year
- Yearly subscription - discount3 Days trial$109.991 Year
- Buy 1200 Gems$4.99
- Multilingual Pass - Lifetime$119.99
- Multilingual Pass - Lifetime$159.99
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- lifetime membership for new$299.99
GOIKOI 英単語
- Pro 月間プラン (1 ヶ月)$11.991 Month
- Pro 年間プラン (12 ヶ月)$69.991 Year









