Learn Japanese active and passively with AI Roleplay and watching Japanese Youtube videos. We use AI to help you understand Japanese subtitles easily!
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 study 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.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://www.hayailearn.com/company/privacy-policy
Helped me a lot easier to use than Duolingo actually
No freemium
critic number ?
Honestly I think new companies need to consider where consumers are at a certain point. Right now there are more and more services asking for $50-$100 subscriptions for a yearly basis and it simply isn’t sustainable to have every company do this. I’m not saying companies have to provide every feature for free but adding a couple creates a larger market. You have more users, and most likely more individuals willing to recommend and use the product. I just think this new trend is annoying, especially when apps and websites aren’t clear that they aren’t free until you finish making the account.
Pay to use app
bhadbhiddie
I understand offering premium services for cost but to use the app at all is simply greedy. It used to be five minutes daily now it’s none at all. This is a language learning app and there’s tons out there. This is not a necessity and is completely optional. I will be opting out of using it anymore.
Great for immersion
Hunk07
App has made YouTube videos way more accessible for language learners, allowing you to listen to natural Japanese with easy lookups. The app is not perfect and the subtitle transcription makes mistakes but for an intermediate-advanced learner this app is a god send.
bug fix and layout improvements
Version 2.0.18
The developer, Fallen Cloud Studios LLC, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
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Data Linked to You
The following data may be collected and linked to your identity:
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Identifiers
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Diagnostics
Privacy practices may vary, for example, based on the features you use or your age. Learn More
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Infrequent Cartoon or Fantasy Violence Realistic Violence Profanity or Crude Humor Mature or Suggestive Themes Horror/Fear Themes Medical Treatment information Alcohol, Tobacco, Drug Use or References Sexual Content or Nudity Guns or Other Weapons
