Learn languages fromwhat 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.

NETFLIX
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14
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Scene

How it actually works

Step 1

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 supported websites into a lesson.

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14/20
Step 2

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.

lifespan

Everything you need.One place.

Feature

Metheus
Us
Migaku
Mi
LingQ
Li
Lang. Reactor
LR
Duolingo
Du

Free plan available

10+ Courses

One-click lookup & flashcards

Smart review from content

Learn from real content

Plans

Free is alreadythe full product.

Immersion, mining, spaced repetition and the extension cost nothing. Premium only unlocks the rest of the course modules.

Free

USD 0

Everything you need to learn from real content.

  • Video immersion with interactive subtitles
  • One-click word and sentence mining
  • Spaced repetition (FSRS) for every card
  • Your own decks and imports
  • The complete browser extension
  • Module 1 of every course
Start free

Premium

USD 9.99/month· or USD 79/year

For when you want to go through whole courses.

  • Everything in Free
  • Modules 2 to 10 of every course
  • Cancel anytime

In Argentina you can also pay ARS 10,000/month with Mercado Pago.

Get Premium

The extension is 100% free

Interactive subtitles and one-click mining on supported sites. No plan needed, no limits.

Get the extension

Subscriptions renew automatically until you cancel. Payments are processed by Lemon Squeezy (and Mercado Pago in Argentina); taxes may be added at checkout. Refund policy

Built by one person

Isaac - Founder of Metheus

Isaac

Founder & Developer

19 y/o CS Student
Solo Founder
Zero Funding
Mission-Driven

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 building the platform I wished existed. No team. No funding. Just a laptop and an obsession.

From Buenos Aires, for the world.

Common Questions

2026 Immersion Report

Language learning in 2026 isn't about finishing daily streaks. The fastest path to fluency combines three elements: comprehensible input from real media you enjoy, active vocabulary capture while consuming that content, and spaced repetition to lock words into long-term memory. Gamified apps build the habit. Immersion tools build the fluency. The most effective learners use both—in that order.

Read the Full 2026 Comparison Guide→

From The Blog

Free plan - no credit card

Ready to learn from
what you love?

Join the early adopters turning their Netflix, YouTube, and reading time into real language progress.