Comparison

Language Reactor vs Master English

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

Head to head
About

Language Reactor

Learn languages through the power of music with interactive lessons based on your favorite songs. This app offers real-time lyric exercises, vocabulary building, and progress tracking to make language acquisition engaging and effective. It's an immersive alternative to traditional study methods.

Highlights
  • Personalized music-based courses
  • Real-time lyric exercises
  • Offline learning mode
  • Adaptive difficulty
  • Vocabulary builder
  • Progress tracking
Features
Read full description

Discover Sounter, the ultimate spanish learning app that transforms how you learn languages through the power of music. Whether you are diving into italian language learning, mastering german language learning, exploring a french learning app experience or ready to learn portuguese, Sounter makes every lesson feel like your favorite playlist. It's like language reactor but with music. WHY SOUNTER Experience a new way to learn languages that adapts to your taste and your pace. Sounter leverages your favorite songs to teach vocabulary, pronunciation and cultural context—all without traditional drills or textbooks. You won’t just memorize words; you’ll sing them, repeat them and internalize them naturally. KEY FEATURES • Personalized music-based course: turn any song into an interactive lesson • Extensive multilingual catalog: Spanish, French, German, Italian, Portuguese and more • Real-time lyric exercises: complete lyrics while listening and get instant feedback • Offline learning mode: download videos and lyrics to practice anywhere • Adaptive difficulty: lessons adjust to your level, from beginner to advanced • Vocabulary builder: tap on any word to see definitions, examples and pronunciation • Progress tracking: monitor your streaks, mastered words and completed songs UNIQUE BENEFITS • Engage with authentic content: learn from real music instead of artificial examples • Boost retention: scientific evidence shows music enhances memory and recall • Learn faster: songs stick in your mind, so you acquire new vocabulary in minutes • Stay motivated: combining entertainment and education keeps you coming back • Cultural immersion: discover the nuances and slang of native speakers • Holistic skills: practice listening, reading, speaking and writing in one session HOW IT SOLVES YOUR PROBLEM Traditional apps can feel repetitive, disconnected or boring. Sounter solves this by embedding learning directly into songs you love. Say goodbye to rote flashcards and hello to immersive sessions that feel more like entertainment than study. You’ll notice progress in comprehension, pronunciation and confidence as you engage with meaningful, enjoyable content. SUPPORTED LANGUAGES • Spanish learning app: comprehensive courses for Latin America and European Spanish • French learning app: rich catalogue of chansons and pop hits for every learner • Italian language learning: immerse yourself in Italian hits, from classics to modern tracks • German language learning: extensive library of German-language songs to build fluency • Learn Portuguese: Brazilian and European playlists curated for learners WHY LEARN WITH MUSIC Music is proven to activate memory centers more effectively than traditional methods. When lyrics loop in your mind, you absorb grammar structures and vocabulary subconsciously. Sounter combines cognitive science and user-friendly technology to help you speak and understand new languages faster and more naturally than ever before. WHAT USERS LOVE • Effortless onboarding: start learning in seconds with no configuration • Seamless integration: link your favorite playlists or explore curated collections • Community-driven recommendations: discover trending songs that other learners enjoy • No hidden fees: access core content for free and upgrade anytime for premium features GET STARTED TODAY Ready to transform your language journey? Download Sounter now and join millions of learners who have unlocked new skills by singing along to their favorite tracks. Whether you’re seeking a top-tier spanish learning app, pursuing italian language learning goals, or exploring multiple languages at once, Sounter delivers an engaging, effective and fun experience. Embrace a smarter way to learn languages—your next favorite song is waiting.

About

Master English

Learn to speak English fluently with AI. This app creates personalized programs for Spanish speakers aiming for advanced English proficiency for career advancement. Practice real-life conversations with AI avatars and get instant feedback on pronunciation.

Highlights
  • Personalized learning programs
  • AI-powered conversation practice
  • Real-time pronunciation feedback
  • AI tutor for questions
  • Career-focused English skills
  • Optimized lessons based on pace
Features
Read full description

¡Aprende a hablar inglés con fluidez con IA! Master English es una app de IA diseñada para adultos hispanohablantes que desean alcanzar un nivel avanzado de inglés para su carrera. Al instalar la app, te crearemos un programa personalizado, adaptado a tu nivel y necesidades. Con este programa podrás aprender todo lo que necesitas para hablar inglés a nivel avanzado. También ganarás confianza practicando conversaciones basadas en situaciones reales con avatares de IA. Y si tienes alguna duda sobre el aprendizaje del inglés, tu tutor de IA personal responderá tus preguntas. A medida que practiques con la app Master English, nuestra tecnología de aprendizaje patentada optimizará las lecciones según tu ritmo y te proporcionará feedback personalizado sobre tu pronunciación en inglés. Esto te permitirá mejorar tus habilidades en inglés de la manera más eficiente posible. Al completar el programa Master English, serás capaz de mantener conversaciones en inglés con confianza y aplicar a ofertas de trabajo donde el inglés sea un requisito. Nuestro programa ha sido creado por decenas de profesores de inglés certificados, especialistas en ciencia de datos e ingenieros altamente cualificados que trabajan arduamente en equipo para brindarte la mejor experiencia de aprendizaje en línea y ayudarte a alcanzar un nivel avanzado de inglés. En Master English, creemos que todos deberían tener la oportunidad de aprender a hablar inglés al nivel requerido para los trabajos mejor remunerados. Apoyamos todos los niveles de inicio: principiante, básico, intermedio o superior. El programa incluye de 3 a 5 lecciones de inglés por semana, cada una de las cuales toma unos 45 minutos para completarse. Dependiendo de tu nivel inicial y ritmo de aprendizaje, alcanzar un nivel avanzado de inglés tomará entre 6 y 12 meses. ¡Si estás dispuesto a invertir este tiempo en mejorar tu inglés, serás recompensado con excelentes resultados! TEN EN CUENTA QUE Necesitas una suscripción para acceder a nuestro programa y a las herramientas de esta aplicación. El cargo se lleva a cabo tras la confirmación del pedido desde la cuenta de iTunes. La suscripción se renueva automáticamente hasta que la renovación automática es cancelada al menos 24 horas antes de la finalización del periodo de pago vigente. Tu cuenta de iTunes será cargada mensualmente durante las 24 horas previas a la finalización del periodo de pago actual, salvo que cambies los detalles de tu suscripción en tus ajustes de cuenta. El precio mensual de la suscripción es siempre el mismo. Una vez completada la compra, puedes gestionar tu suscripción en los ajustes de cuenta. Si la suscripción es cancelada, el acceso a los cursos y las funciones de la aplicación expirarán al terminar el periodo de pago vigente. Términos de Uso: https://www.masterenglish.com/es-latam/terminos-de-uso/?hf=1 Política de Privacidad: https://www.masterenglish.com/es-latam/politica-de-privacidad/?hf=1 Comienza hoy tu camino hacia un nivel avanzado de inglés con la aplicación Master English. Es una decisión de la que nunca te arrepentirás. ¡Nos vemos al otro lado!

Screenshots

Language Reactor4 screens
Master English4 screens

Verdict

The call

The clearest difference is monetization model: Language Reactor at free with in-app purchases against Master English's subscription. Language Reactor also leads on iOS requirement (13.0 vs 16.0). Master English's advantage is review sentiment (78% vs 66%) and chart position (#133 vs unranked). On price, rating, update cadence and ads 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. Language Reactor sells 12 in-app purchases, starting at $3.49 per month and Master English sells 1 in-app purchase, starting at $13.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.8 for Language Reactor against 4.9 for Master English. That said, the two scores are not equally well evidenced: Master English has 31K ratings behind it against 3.9K, so its average is the more settled of the two. Written reviews are what separate them: 66% of Language Reactor's written reviews are positive against 78% of Master English's.

UpkeepUpdate frequency

Language Reactor ships an update every 3 weeks, Master English fortnightly. Both last shipped on October 25, 2026.

Scorecard5 real differences · 6 level
Language Reactor versus Master English: the parameters behind the verdict, then further details
ParameterLanguage ReactorMaster English
PriceFreeFree
Rating4.8 (3.9K ratings)4.9 (31K ratings) — better
Positive reviews65.6% of reviews78.3% of reviews — better
Number of ratings3.9K31K — better
Update frequencyEvery 3 weeksFortnightly — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases — betterSubscription
Best chart rank—#133 — better
DevicesiPhone, iPodiPhone, iPad
Requires iOS13.0 — better16.0
Further details — not scored
Size120 MB205 MB
Age rating9+4+
DeveloperDavid GalarzaMaster English

Customer experience

Language Reactor

All ratings3,689 ratings
Positive96.7%
Neutral1.2%
Negative2.1%
Written reviews125 reviews
Positive65.6%
Neutral4.8%
Negative29.6%

Master English

All ratings30,696 ratings
Positive98.5%
Neutral0.7%
Negative0.8%
Written reviews448 reviews
Positive78.3%
Neutral4.7%
Negative17.0%

User reviews

Language Reactor

From 3.9K App Store ratings

What we love

  • 👍 User-friendly interface
  • 🎶 Engaging music-based learning
  • 💯 Effective language learning
  • 🔥 Excellent app
  • 🤩 Fantastic app

Room to improve

  • 🐛 Technical issues (crashes, bugs, songs not loading)
  • 💰 Subscription concerns (hidden fees, difficult to cancel)
  • 🇧🇷 Lack of support for certain languages

Master English

From 31K App Store ratings

What we love

  • 🚀 Excellent learning experience
  • 👍 Easy and practical
  • 🚀 Effective learning methodology
  • 👍 Personalized teaching
  • 👍 Reasonable price compared to other courses

Room to improve

  • 🐛 Login and access issues
  • 🐛 Technical problems with the app
  • 🔍 Lack of interactive features

Bugs and requests

Language Reactor

Reported bugs

2 issues
  • Repeated lessons and inability to progress
  • Automatic subscription charges without user consent

Requested features

3 requests
  • Add writing practice feature
  • Improve accent and pronunciation feedback
  • Provide more language options

Master English

Reported bugs

2 issues
  • Subscription issues and continued billing after cancellation
  • Inability to access the app after initial setup

Requested features

3 requests
  • Ability to rotate the app on iPad
  • Progress tracking and assessment tests
  • More interactive and gamified learning

In-app purchases

12 purchases

Language Reactor

Subscriptions11
  • Monthly7 Days trial$3.491 Month
  • Monthly7 Days trial$11.991 Month
  • Biannual7 Days trial$14.996 Months
Show 8 more
  • Sounter Premium Welcome Offer$19.991 Year
  • Annual Subscription7 Days trial$23.991 Year
  • Sounter Premium1 Month trial$24.991 Year
  • Biannual7 Days trial$40.496 Months
  • Biannual7 Days trial$50.996 Months
  • Annual Subscription7 Days trial$59.991 Year
  • Biannual7 Days trial$59.996 Months
  • Annual Subscription7 Days trial2 variants$69.991 Year
One-time1
  • Lifetime - Premium$99.99
1 purchases

Master English

Subscriptions1
  • Programa de inglés$13.991 Month

Questions

Is Language Reactor free?
Language Reactor is free to download, with in-app purchases available.
Is Master English free?
Master English is free to download, with in-app purchases available.
Which has better reviews, Language Reactor or Master English?
Master English is rated higher. Language Reactor averages 4.8 out of 5 from 3.9K ratings, while Master English averages 4.9 from 31K ratings.
Do Language Reactor or Master English have ads?
Neither Language Reactor nor Master English shows ads.
Which is updated more often, Language Reactor or Master English?
Language Reactor ships an update every 3 weeks, and Master English fortnightly. Most recently, Language Reactor was updated on October 25, 2026 and Master English on October 25, 2026.

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