Learn the words
that actually matter.
Paretoify is an AI-powered language platform built on a simple truth: 1,000 words cover roughly 80% of everything you'll ever say or hear in a language. We help you learn those words — fast.
The problem with language learning
Traditional language courses treat all vocabulary equally. They mix the words you'll use every day with obscure vocabulary you may never encounter. The result: years of study before you can hold a real conversation.
Most learners quit long before they reach conversational fluency — not because they lack discipline, but because they're stuck in an inefficient system.
The Pareto Principle says 20% of inputs drive 80% of outcomes. In language, the top 1,000 most frequent words account for ~80% of all spoken and written communication.
Paretoify ranks every word by real corpus frequency. You start with rank #1 and work your way up — always learning the most impactful words first. No filler. No busywork.
How it works
Learn each word with AI-generated mnemonics, then prove you know it through timed active recall exams. 8-second timer, two-strike system — if you can't retrieve it from memory under pressure, it loops back.
Score 80% or higher on a 100-word active recall exam to advance. No multiple choice, no hints — you speak the answer. The gate ensures every word is truly in long-term memory.
Your AI tutor runs immersive roleplay scenes forcing you to actively use your words in real situations. A debrief scores each word — pass advances to mastered, fail schedules a focused retake.
Speed-tiered active recall: lightning-fast responses (<2s) earn longer intervals, slow recalls get drilled harder. Your entire schedule adapts to how quickly you can retrieve each word.
Built for real engagement
Timed voice exams, AI phone calls with no hints, video comprehension tests, and personalized songs from your vocabulary. Active recall is woven into every feature — you speak it or you don't pass.
Don't learn the textbook version if you don't need it. Pick your style — Street slang, Tourist survival, Spiritual depth, Corporate formality, and more. Each style shapes how the AI talks, what vocabulary it prioritizes, and how it corrects you.
All sessions happen through live AI voice conversations via WebRTC. No typing drills — real active recall speaking practice from day one.
Learn from any YouTube video. Paste a link and our AI extracts phrases, teaches them with mnemonics, and drills them with active recall through spaced repetition.
Your AI tutor calls your real phone via SIP. It builds a conversation plan from your mastered words — the ultimate active recall test with no screen and no hints.
Complete a level and get a personalized AI-generated song in your target language — with lyrics built from the exact words you mastered.
Milestone exams feature AI-generated videos in your target language. Watch, comprehend, and prove you understand real speech in context.
Seasonal engagement with 10 reward tiers, daily and weekly challenges, and exclusive cosmetic rewards. A new season every three months.
Earn verified language certifications at key milestones — Survival, Tourist, Social Navigator, and beyond.
Spanish, Portuguese, French, German, Italian, and English — each with real corpus-frequency word rankings.
Meet the founder
Language enthusiast with a passion for travelling and meeting people from around the world. Paretoify was born from a simple frustration: language apps waste too much of your time on the wrong words. Stalin set out to fix that.
stalin@paretoify.comReady to start?
Take our free 60-word diagnostic and find out exactly where you stand.