Learnlanguagesfromwhat you actually love.
Metheus turns books, videos, subtitles, and your own media into a living language lab. Click any word, keep context, and progress naturally.
DECODETHENOISE.
Transforms the chaos of the web into a structured path to fluency. Don't just watch. Absorb.
English ~ 1.5B
The Global Operating System.
The internet's base layer. 60% of the world's information is stored here. Access it all without restrictions.
How it actually works
Four steps. One loop. Input, capture, memory, and measurable growth.
CHOOSE YOUR CONTENT
Learn from what you already consume. Activate Metheus while browsing or add your own books, videos, or decks. Any content becomes your immersion environment.
CLICK & COLLECT
Watching a movie? Reading a blog? Click any word you don't know. Get instant meaning, quick audio, and save the exact sentence in one action. Turn any website into a lesson.
MASTER YOUR MEMORY
Our smart review system predicts when you are about to forget a word and tests you at the right moment. Review with real audio and scene-based snapshots from where you learned it.
LEVEL UP YOUR STATS
Watch your vocabulary grow every day. Track streaks, known words, and immersion time. See the data behind your fluency and keep your momentum visible.
Everything you need.One place.
Capabilities
What actually moves fluency forward
Metheus
Duolingo
LingQ
Language Reactor
Migaku
100% Free
Works on any website
One-click word lookup & flashcards
Smart review from your content
Learn from real content
Offline learning
100% Free
Works on any website
One-click word lookup & flashcards
Smart review from your content
Learn from real content
Offline learning
Loved by language learners
“In 3 months with Metheus, I progressed more than in 2 years of Duolingo. The immersion approach with real content is a game-changer.”
Alex K.Alpha Tester
🇯🇵 Learning Japanese
Built by one person
Isaac
Founder & Developer
I was tired of apps that felt like homework. I wanted to learn languages from movies, music, and the internet — not from generic sentences in a vacuum.
Every tool I tried was fragmented. One app for flashcards. Another for dictionaries. Another for subtitles. None of them talked to each other. None of them felt built for people who actually want to consume real content.
So I built Metheus. While studying Computer Science at Universidad de Buenos Aires, I spent nights and weekends coding the platform I wished existed. No team. No investors. Just obsession and a laptop.
Essential learning tools will always be free. I built this for learners like me, prioritizing the product over quick profits.
From Buenos Aires, for the world.
Ready to learn from
what you love?
Join the early adopters turning their Netflix, YouTube, and reading time into real language progress.