HayaiLearn: Learn Japanese

HayaiLearn

In-app purchases

About this app

Learn Japanese the way you'll actually stick with - by watching the YouTube content you already love.

HayaiLearn ("hayai" means fast) turns any Japanese video into an interactive lesson with AI-powered subtitles, instant contextual translations, and real speaking practice. Immersion in easy mode.

Most learners quit because they feel overwhelmed, short on time, or have nowhere to practice. HayaiLearn fixes all three: enjoyable content keeps you motivated, bite-sized study fits any schedule, and an AI conversation partner gives you unlimited practice.

Learn from videos you enjoy

20,000+ Japanese videos, plus import any YouTube video yourself
Every video graded 1-10 by difficulty, so you always find content at your level
A personalized feed that surfaces what's most comprehensible to you right now

AI that makes hard content easy

Fully AI-parsed subtitles - far more accurate for slang and casual speech
Tap any word for the meaning that fits this sentence, not a wall of definitions
One-tap AI explanations break down grammar and sentence patterns on demand

Actually speak the language

Roleplay conversations built around the exact words and grammar you're learning
The AI voices the scene, listens to your reply, and gives instant, explainable feedback
Shadowing and pronunciation grading to sharpen your accent

Remember what you learn

Smart spaced-repetition Review for reading and listening, grounded in real clips
Flashcard or multiple-choice, drilled in the context you first saw the word
Frequency-based vocabulary lists with JLPT N5-N1 filters

Track real progress

XP across all four skills - Reading, Listening, Writing, Speaking
Level up, build daily streaks, and watch words go from "just started" to "mastered"
Mine and save sentences, organize videos into albums, and study your way

Built for the full journey

Input builds comprehension. Output builds fluency. HayaiLearn is the only tool that covers both - turning the shows you love into the fastest path to speaking Japanese.

A paid subscription is required to access content and features.
You can start with a free 7-day trial; cancel anytime.

Terms of Use: https://www.hayailearn.com/company/terms-of-service
Privacy Policy: https://www.hayailearn.com/company/privacy-policy

Ratings and reviews

uhmm it needs more to be more more more free accessible. First the intro and the guide for the first timer especially gives a more soothing experience and it is very thinkable that i will learn japanese with confidence. I will take N5 next year i hope it helps! i will comment after the result. Ganbare!

This isn't a free app. I recommend administrators to add ads running feature instead of paid plans.

This app is really great as it provides what I think is missing from most japanese learning tools : a full explanation of japanese sentences in context. As it is it's still a little rough around the edges, and will mostly improve with time, but for me it provides invaluable info without having to switch out of Netflix and YouTube to take notes or check meanings. I'm looking forward to seeing it grow more in the future !

What’s new

• New video detail page: see what's inside before you watch
• End-of-video summary with a quick review drill of what you just watched
• Drills: picture hints, more natural sentences and voices, example clips, hide or report videos
• Tap a channel name to browse all its videos
• Level filter is now a slider
• Save a sentence with one tap; notes are optional
• Country filter is back in your profile
• Fixed known words and streak not loading after a restart