Language Reactor vs Molingo
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. PlayLingo turns any YouTube video into practice: understand every line, then say it yourself. Subtitles, translation, explanations, shadowing and word review. WHO IT'S FOR • You read English fine, but listening is the one skill that won't move • You want to keep up shadowing but quit after three days • You want to follow your favorite YouTubers, shows and interviews without pausing for a dictionary • You learn a language other than English: same app, same method WATCH: any video becomes your material • Any YouTube video. Plus curated picks refreshed every day • Collections by level, A1 to C2, and by topic. Shelves like "Start here" and "6 minutes or less" UNDERSTAND: one sentence at a time, never left behind • Subtitles split by sentence and synced with the video • Phonetic transcription, so you see how a word actually sounds • Parts of speech in color, so the shape of a sentence is visible at a glance • Translation in context: what the line means in this scene • Tap a word or an idiom and Lingo, your assistant, explains it in this sentence. "Make sure" is explained as one phrase, not two words PRACTICE: five ways to watch the same video • Watch: subtitles and translation on, follow along • Understand: translation hidden, work out the meaning yourself • Listen: text hidden, catch the line by ear. Tap only the word you missed • Build: put the line back together from its words • Speak: say each line out loud. Words light up as you say them • Even videos in your own language work: you study their translation into the language you're learning REMEMBER: words come back before you forget them • Save words and phrases straight from the subtitles • Review runs on FSRS, a spaced-repetition algorithm timed to your memory • Every card keeps the scene and the sentence where you heard the word • A Home Screen widget with your word of the day KEEP GOING • Three minutes of watching or one round of practice counts as a study day • Your streak comes with freezes that cover a missed day on their own • Sign in with Apple and your words and progress sync across iPhone and iPad FREE AND PRO • Free every day: subtitles, translation, Lingo's explanations, daily practice and word review • No limit on which videos you can open. Any YouTube video • The free plan limits only daily watch time and how much you practice. Pro removes those limits • 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." LANGUAGES (67) English, Spanish, French, German, Italian, Portuguese, Japanese, Korean, Chinese, Arabic, Turkish, Russian and more, each with subtitles and explanations in your language. Now you can level up any language just by watching what you love. Contact: info@playlingo.app Terms of Service: https://www.apple.com/legal/internet-services/itunes/dev/stdeula
Molingo
Transform any YouTube video into an interactive language lesson with dual-language subtitles and instant translation. Learn vocabulary and grammar through authentic content you enjoy, with AI explanations and spaced-repetition flashcards for effective memorization.
- Interactive YouTube video lessons
- Dual-language, synced subtitles
- Tap-to-translate words and sentences
- AI grammar and nuance explanations
- Spaced-repetition flashcards
- Learn 20+ languages
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You don't learn a language from a textbook — you learn it from real content you enjoy and understand. Molingo turns any YouTube video into an interactive, tap-to-translate language lesson. No fixed courses, no pre-set curriculum, no locked video library. If you've tried apps like FluentU or Lingopie and wished you could learn from the videos you actually watch, Molingo works with any YouTube video you choose — music, vlogs, talks, news, K-dramas, anime, movies, and podcasts. It's built on comprehensible input — the idea that you acquire a language and build toward fluency by consuming real content you understand and enjoy. Linguists have found that the ~1,500 most common words already cover roughly 80% of everyday speech, so you can start learning from authentic, native content far sooner than you think. Molingo helps you understand every word, then remember it for good. HOW MOLINGO WORKS 1. Paste any YouTube link 2. Molingo builds a word-by-word transcript with dual-language (bilingual) subtitles, synced line by line to the video 3. Tap any word for an instant, real-time translation with pronunciation 4. Tap any sentence for a full translation, a word-by-word breakdown, or an AI explanation of grammar and nuance 5. Save new words to spaced-repetition flashcards and review them at exactly the right time Then do it again with the next video you love. WHY LEARN WITH MOLINGO • Real immersion — learn from authentic, native video and audio, not scripted textbook dialogue • Dual-language transcripts synced line by line — perfect for listening, reading, and shadowing practice • Tap-to-translate any word or sentence instantly, with natural pronunciation • A built-in AI language tutor that explains grammar, nuance, and usage and breaks sentences down word by word • Spaced-repetition (FSRS) flashcards that schedule your vocabulary reviews automatically so you never forget • Build real listening comprehension and vocabulary from content you actually enjoy • Track your streak, words learned, and progress over time LEARN 20+ LANGUAGES Molingo works for learning Spanish, English, Korean, Japanese, Chinese (Mandarin), French, Italian, German, Portuguese, Russian, Vietnamese, and more — anywhere there's video. Love K-dramas? Learn Korean. Into anime? Learn Japanese. Following Dreaming Spanish and other comprehensible-input creators? Learn Spanish from the channels you already watch. Go beyond textbooks, fixed courses, and flashcard-only apps: build real vocabulary, grammar, and listening skills from the music, vlogs, interviews, talks, and videos you already love. Questions or feedback? Email support@studybitai.com Privacy Policy: https://molingo.app/privacy.html Terms of Use: https://molingo.app/terms.html START LEARNING TODAY: • Learn Spanish • Learn Japanese • Learn Korean • Learn Chinese • Learn French • Learn German • Learn Italian • Learn Portuguese • Learn Russian • Learn Vietnamese • Learn English
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Verdict
Language Reactor and Molingo both sit at 4.5 stars, but that hides the real split: 100% of Molingo's written reviews are positive against 78% of Language Reactor's. Molingo also leads on iOS requirement (15.1 vs 18.0). Language Reactor's advantage is update cadence (weekly vs every 3 weeks) and ratings volume (657 vs 59). On price, rating, 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. Language Reactor sells 6 in-app purchases, starting at $2.99 per 7 days and Molingo sells 2 in-app purchases, starting at $7.99 per month. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 4.5 for Language Reactor against 4.5 for Molingo. That said, the two scores are not equally well evidenced: Language Reactor has 657 ratings behind it against 59, so its average is the more settled of the two. Written reviews are what separate them: 78% of Language Reactor's written reviews are positive against 100% of Molingo's.
Language Reactor ships an update weekly, Molingo every 3 weeks. The most recent releases landed on September 21, 2026 and September 16, 2026 respectively.
| Parameter | Language Reactor | Molingo |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (657 ratings) | 4.5 (59 ratings) |
| Positive reviews | 77.8% of reviews | 100.0% of reviews — better |
| Number of ratings | 657 — better | 59 |
| Update frequency | Weekly — better | Every 3 weeks |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Freemium |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 18.0 | 15.1 — better |
| Further details — not scored | ||
| Size | 114 MB | 143 MB |
| Age rating | 12+ | 4+ |
| Developer | Alexey Nenastyev | Tri Hieu Huynh |
Customer experience
Language Reactor
Molingo
In-app purchases
Language Reactor
- PlayLingo PRO$2.997 Days
- Pro Weekly$3.997 Days
- PlayLingo Pro$11.901 Month
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- PlayLingo PRO$34.996 Months
- PlayLingo Pro3 Days trial2 variants$74.991 Year
- PlayLingo Pro Family$119.991 Year
Molingo
- Molingo Pro — Monthly$7.991 Month
- Molingo Pro — Annual$69.991 Year








