What is Language Lit?
Language Lit is a language learning app built around one activity: reading things you actually want to read. Pick a book, a news article, or a YouTube video in the language you're learning. Tap any word or phrase you don't know and you get an AI translation written for that exact sentence, not a dictionary entry. Words you save become flashcards automatically, and FSRS, the same open-source spaced repetition algorithm serious Anki users rely on, brings each one back right before you'd forget it.
- Method:
- Extensive reading with contextual AI translation and FSRS spaced repetition
- Languages:
- 30+, including Japanese, Chinese, Korean and Arabic
- Platform:
- Web app, nothing to install
- Price:
- The core method is free forever; paid plans add importing your own content
You've been studying for months. Maybe years. So why does real conversation still feel impossible?
You've tried the apps. You've kept the streaks. You've sat through the lessons, matched the pictures, conjugated the verbs.
And yet.
You turn on a TV show in your target language and catch maybe 10%. A native speaker talks to you and your mind goes blank. You read a news article and it takes twenty minutes to get through two paragraphs.
It's not your fault.
The problem isn't your memory. It isn't your talent. It isn't how many hours you've logged.
The problem is that most language learning tools are designed to keep you using them, not to make you fluent.
The language learning industry has a dirty secret: engagement isn't acquisition.
Most apps are optimized for one thing: keeping you coming back. Daily streaks. XP points. Leaderboards. Cute animations when you get an answer right.
None of this has anything to do with how your brain acquires language.
Here's what the research actually shows:
Your brain acquires language through comprehensible input.
Not drills. Not games. Not vocabulary lists ripped from context. You need real content, a little above your current level, that you actually understand and care about.
Vocabulary without context doesn't stick.
A word learned in isolation is a word you'll forget. A word you meet in a real sentence, in a story you're following, in a video you're watching: that word has roots. It stays.
Spaced repetition works, but only if it's done right.
Reviewing a word at the perfect moment before you forget it is the most efficient way to build long-term memory. Most apps either skip this entirely or use primitive algorithms from the 1980s.
One-size-fits-all content wastes your time.
If the content is too easy, you learn nothing. Too hard, you understand nothing. The sweet spot is personal. It depends on what you already know.
The apps you've tried fail on one or more of these principles. Usually all of them.
That's not a bug. It's their business model.
A system built on how your brain actually learns.
Language Lit isn't a collection of features. It's a complete acquisition system, and every piece is designed to work with your brain instead of against it.
Learn from content that actually matters to you.
Every word understood in the moment you need it.
Watch yourself learn.
Immersion for input. AI for understanding. Spaced repetition for memory.
Three pillars. One system. The fastest path from "studying" to "speaking."
The research this method is built on.
None of this is a proprietary secret. Every pillar of Language Lit comes from published research on how people actually acquire languages. Here are the studies, with links, so you can check them yourself.
Spaced review beats cramming
It's one of the most replicated findings in memory research. A meta-analysis of 254 studies with 14,811 participants found spaced practice produced 47.3% recall against 36.7% for massed practice. When you review matters as much as whether you review.
Sources: Cepeda et al. 2006 · Kang 2016
FSRS predicts your memory better than the classic algorithms
In an open benchmark built on roughly 350 million real flashcard reviews from 10,000 learners, FSRS predicted recall more accurately than the classic SM-2 algorithm for 99.6% of users. Anki's own FAQ puts it plainly: with FSRS you do fewer reviews for the same retention. It's the exact algorithm scheduling your saved words here.
Sources: Ye, Su & Cao 2022 (KDD) · Open SRS benchmark
Extensive reading measurably builds proficiency
A TESOL Quarterly meta-analysis of 34 studies with 3,942 learners found consistent gains from extensive reading (effect size d = 0.46, and 0.71 in pre-post designs). Decades of comprehensible input research point the same way: you acquire language from input you understand and care about.
Sources: Nakanishi 2015 · Jeon & Day 2016 · Krashen 2004
Comprehension starts at about 98% word coverage
Research puts unassisted reading comprehension at roughly 98% known words, which takes a vocabulary of 8,000 to 9,000 word families. That bar keeps real content out of reach for years. Tap translation removes it, so you read what you love from day one and grow your vocabulary in context.
Sources: Hu & Nation 2000 · Nation 2006
Hearing the text while you read trains your ear
Studies on shadowing, following a text while its audio plays, show it sharpens phoneme perception and improves listening comprehension, especially for lower-proficiency learners. That's why lessons come with read-along narration and sentence-level audio controls.
Sources: Hamada 2016 · Kadota 2019
Research references last checked: July 2026
The complete language acquisition system.
Language Lit brings together everything the research says works, and leaves out everything it says doesn't. One app, one workflow, one path to fluency.
Import the content you already want to consume. Read and listen with instant, contextual AI translation. Save words effortlessly and review them at the scientifically optimal time.
No switching between apps. No building your own systems. No guessing if you're doing it right.
Just a calm, focused environment where fluency happens as a side effect of doing something you enjoy.
Everything you need. Nothing you don't.
Every feature exists for one reason: to move you closer to fluency. No filler, no gimmicks.
Your content. Your classroom.
YouTube videos. News articles. Ebooks. PDFs. Web pages. Subtitle files. Even scanned pages through OCR. If it exists in your target language, you can learn from it. Import in seconds, start reading immediately. Stop learning from content someone else chose for you. Learn from what you'd read anyway.
Context-aware meaning, instantly.
Tap any word or phrase. Get a translation that reads the whole sentence, not a dictionary definition but what it means right here, right now. Powered by the latest large language models. See usage examples, grammar notes, and related phrases. Hear native pronunciation with one tap. Understanding happens in the moment, and your reading flow stays unbroken.
Remember forever. Study less.
Every word you save becomes a flashcard, automatically. Language Lit uses FSRS, the same algorithm trusted by millions of serious learners, to schedule reviews at the optimal moment. No manual deck building. No guessing when to review. The system tracks what you know and surfaces what you're about to forget. Maximum retention. Minimum time.
Hear every sentence as you read it.
Press play and the text reads itself aloud, sentence by sentence, each one highlighted as it's spoken. Tap any word to pause and understand it, then continue right where you left off. Reading builds vocabulary. Listening builds comprehension. Read-along trains both at once.
Your words follow you everywhere.
Save a word once and it lights up in every text you read from then on: today's article, next week's book chapter. As a word gets stronger, its highlight fades, until mastered words disappear into plain text. The page itself shows your progress. Every text you read makes the next one easier. It's compound interest, applied to language.
One method. Any language.
Japanese. Spanish. Korean. Arabic. German. Mandarin. Portuguese. Russian. And many more. Each language is fully supported with native text handling, pronunciation guides, and script-specific features. Learn one language or five, and the system adapts to each. Your method shouldn't change just because your target language does.
Six features. One integrated system. The complete toolkit for language acquisition.
I moved to Japan. Then I realized nothing actually worked.
When I arrived in Tokyo, I was excited to finally immerse myself in Japanese. I'd pick it up fast. I was living there, after all.
Reality hit hard.
I tried the popular apps. Kept my streaks. Did my daily lessons. Months passed. I still couldn't follow a simple conversation. Couldn't read a menu. Couldn't understand the announcements on the train.
The apps were great at keeping me engaged. They just weren't making me fluent.
So I started researching. What does the science actually say about language acquisition? Why do some methods work and others don't? What would a tool look like if it were built on evidence instead of engagement metrics?
Language Lit is the answer to that question.
I built the app I wished existed, one that uses real content, contextual AI, and proper spaced repetition. One that respects how the brain actually learns.
Today, I use it every day. And for the first time, I'm actually progressing.
This isn't a startup chasing a market. It's a tool I built to solve my own problem. I think it might solve yours too.
Start free. Upgrade when you want more.
Reading and tap-to-translate are free forever. Paid plans add your own content, AI lessons, and unlimited saved words.
No credit card to start. Change or cancel your plan anytime.
Frequently Asked Questions
What happens when I hit the free limits?
Reading and tap-to-translate are unlimited on Free. You can save up to 200 words. Upgrade for unlimited saved words, your own content imports, and AI lessons.
What is the difference between Pro and Premium?
Pro unlocks importing your own content, AI lessons, word analysis, and mnemonic images. Premium adds a smarter AI model for analysis and lessons, higher-quality images, your choice of read-along voice, and more daily audio.
Can I switch plans later?
Yes. Upgrade, downgrade, or cancel anytime from your account settings.
What if it doesn't work for me?
Start with Free and prove it to yourself. No card, no commitment.
Frequently asked questions
What is Language Lit?
Language Lit is a language learning app where you learn by reading real content: books, news articles, YouTube videos, or anything you import. You tap any word or phrase for an AI translation written for that exact sentence, save it, and FSRS spaced repetition brings it back right before you'd forget it. The core method is free in 30+ languages, and it runs in your browser.
How does Language Lit help me learn languages?
Language Lit uses immersive reading to help you learn languages naturally. You read real content in your target language, get instant AI-powered translations when needed, and save words to smart flashcards that use spaced repetition for optimal retention.
Does learning a language by reading actually work?
Yes. Extensive reading is one of the best-studied methods in language acquisition: a meta-analysis of 34 studies with 3,942 learners found consistent proficiency gains, and decades of comprehensible input research point the same way. The catch was always that real texts are too hard too early. Tap translation removes that barrier, so you can start with content you love right away.
What languages can I learn with Language Lit?
Language Lit supports learning 30+ languages, including Spanish, French, German, Italian, Portuguese, Japanese, Korean, Chinese, Russian, Arabic, and many more. You can learn any of them by reading content that interests you, and the interface itself is available in 33 languages.
Does Language Lit work for Japanese and Chinese?
Yes, fully. Japanese and Chinese have no spaces between words, so Language Lit segments each sentence into real words for you: taps and drags select actual words and phrases, not broken fragments. Contextual translation, saved words, and FSRS reviews work exactly like they do for Spanish or French.
How is this different from traditional language learning apps?
Unlike apps that focus on memorizing isolated words and phrases, Language Lit teaches you through immersive reading of real content. Every translation is generated for the exact sentence you are reading, and words you save stay highlighted in everything you read afterwards until you master them, so vocabulary compounds from text to text.
What spaced repetition algorithm does Language Lit use?
Language Lit uses real FSRS, the open-source Free Spaced Repetition Scheduler that serious Anki users choose. In an open benchmark of 10,000 learners and about 350 million reviews, FSRS predicted memory more accurately than the classic SM-2 algorithm for 99.6% of users. Every word you save becomes a flashcard automatically, with no decks to build.
How does the spaced repetition system work?
When you save words while reading, they're automatically added to your personal flashcard deck. FSRS, the most accurate open spaced repetition algorithm available, determines the optimal time to review each word based on your performance, ensuring you retain what you learn long-term.
Do I need to know any vocabulary before starting?
No! Language Lit is designed for all levels, from complete beginners to advanced learners. Our AI-powered translation system helps you understand content at any level, and you can build your vocabulary naturally as you read.
Can I import my own content to read?
Yes. On a paid plan (Pro or Premium) you can import content from YouTube videos, news articles, ebooks (EPUB), PDFs, photos, and web pages. This means you can learn by reading content you actually care about, making the learning process more engaging and effective.
Your first lesson takes three minutes.
Sign up and we'll walk you through it: read a short story, tap your first words, save them, and feel the method click. Tomorrow they'll come back for review. That's the loop that makes you fluent.
Free forever. No credit card required.
