Language Reactor vs Curios
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Language Reactor
Learn languages by watching YouTube videos, podcasts, and movies. This app provides seamless AI-powered translations and an AI tutor to explain slang and idioms. Practice pronunciation with real-time transcriptions and sentence-by-sentence subtitles.
- Learn from real YouTube videos, podcasts, and movies
- AI-powered translations in 80+ languages
- AI Assistant for instant explanations
- Shadowing practice for pronunciation
- Sentence-by-sentence synchronized subtitles
- Part-of-speech highlighting for grammar
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You know the words. Real speech still gets away from you. Sound familiar? Fast. Blurred together. Half the sounds gone. With PlayLingo you learn from what you actually enjoy: movie scenes, YouTube, podcasts, books. Lingo, your AI assistant, explains any word or phrase, and you start to understand real speech. WATCH: movies, shows and any YouTube video • Learn from movie scenes, cartoons, interviews and your favorite YouTubers • Open any YouTube video, or start with collections picked for your level, from A1 to C2 • Bilingual subtitles, line by line, with a translation that fits the scene LISTEN: podcasts you'll actually understand • Podcasts in the language you're learning, from short lessons to real conversations • Every episode gets subtitles: tap a word, see the translation, break down the phrase READ: books, on the page or out loud • Classics and short stories in the language you're learning • Read line by line with translation, or let a natural voice read the book to you on a walk BRING YOUR OWN • Any book, document or photo of a page becomes a lesson, and your own audio and video get subtitles LINGO, YOUR AI ASSISTANT, EXPLAINS EVERY WORD • Tap a word or an idiom and see what it means in this exact sentence. "Make sure" is one phrase, not two words • Hear how a word really sounds and see how the sentence is built, with parts of speech in color • Ask Lingo about anything you didn't get, or type a phrase in your language and hear how it's said PRACTICE INSIDE EVERY VIDEO • Choose how to watch: just enjoy, test your understanding, train your ear, build lines or speak • Hide the translation and work out the meaning, or hide the text and catch every line by ear • Shadow each line out loud, and watch the words light up as you say them WORDS THAT STICK • Save words from subtitles, books or your chat with Lingo in one tap • Spaced repetition brings each word back right before you'd forget it • Every card keeps the sentence, and the movie moment, where you met the word • Your saved words on your Home Screen, a new one every hour • A few minutes a day keeps your streak going, and freezes cover the busy days PLAYLINGO PRO Unlimited watching and practice, chat with Lingo, and AI subtitles for any podcast and your own recordings. Cancel anytime in the App Store. WHAT PEOPLE SAY (App Store reviews) "For the first time, I actually enjoy learning English." "The only app I use to watch English videos. It's simple, and works great." "Love the dual subtitle function." 67 LANGUAGES English, Spanish, French, German, Italian, Portuguese, Japanese, Korean, Chinese, Arabic, Turkish, Russian and more, each with explanations in your language. Watch, listen and read what you love. The language follows. Contact: info@playlingo.app Terms of Use: https://playlingo.app/terms
Curios
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英語のクイズで、語彙と世界の教養を一緒に学ぶ。Curiosは、科学・歴史・文化・地理などの話題を英語で楽しめる学習アプリです。 【毎日の学習を短いクイズで】 ・1日5問から学習をスタート ・英語の問題と日本語訳で理解をサポート ・回答後は英語と日本語の解説で振り返り ・問題文・選択肢・解説を英語の音声で確認 ・中断したクイズを続きから再開 【学んだ内容を復習】 ・間違えた問題にもう一度挑戦 ・気になった単語を自分で保存 ・学習履歴と毎日の目標で継続をサポート 【無料でできること】 1日10問の新しい問題、解説、英語の読み上げ、同じセットの再挑戦を利用できます。無料版には広告が表示される場合があります。 【買い切りPremium】 広告非表示、1日の出題上限の解除、間違えた問題をまとめた復習、保存した単語の復習デッキを利用できます。購入は1回限りで、自動更新のサブスクリプションではありません。価格はアプリ内の購入画面で確認できます。 試験対策に加えて、英語で知る楽しさを毎日の習慣に。
Screenshots
Verdict
The clearest difference is ads: Language Reactor at none against Curios's shown. Language Reactor also leads on update cadence (every 8 days vs every 2 months). On price, in-app purchases, 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
Both are free to download. Language Reactor sells 6 in-app purchases, starting at $11.90 per month and Curios sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Language Reactor ships an update every 8 days, Curios every 2 months. The most recent releases landed on November 8, 2026 and October 30, 2026 respectively.
| Parameter | Language Reactor | Curios |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (873 ratings) — better | — |
| Positive reviews | 82.5% of reviews | — |
| Number of ratings | 873 — better | — |
| Update frequency | Every 8 days — better | Every 2 months |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 18.0 | 17.0 — better |
| Further details — not scored | ||
| Size | 117 MB | 8 MB |
| Age rating | 12+ | 12+ |
| Developer | Alexey Nenastyev | Shunsuke Asai |
In-app purchases
Language Reactor
- PlayLingo Pro$11.901 Month
- PlayLingo PRO$34.996 Months
- PlayLingo Pro$74.991 Year
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- PlayLingo Pro1 Year trial$74.991 Year
- PlayLingo Pro3 Days trial$74.991 Year
- PlayLingo Pro Family$119.991 Year
Curios
- 買い切りPremium$5.99









