HayaiLearn
HayaiLearn is an AI-powered tool designed to facilitate immersive Japanese language learning on YouTube videos. Using AI technology, HayaiLearn offers hoverable...
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What is HayaiLearn?
HayaiLearn is an AI-driven web and mobile app that turns Japanese YouTube and streaming videos into interactive language lessons, allowing learners to study real-world content instead of textbooks. The platform provides dual subtitles, AI explanations for sentences, and an instant pop-up dictionary so users can click any word in a subtitle to see meanings and grammar notes. It includes study features such as sentence mining, SRS (spaced repetition) review of sentences, shadowing/pronunciation practice, word frequency lists, and the ability to organize videos into personal albums or libraries. HayaiLearn is aimed at beginners through advanced learners who prefer an immersion-based, input-first approach (watching anime, vlogs, music, or TV) and for learners who want to convert entertaining video content into systematic study material.
HayaiLearn pricing
Pricing model: Freemium
HayaiLearn uses a freemium model: a free tier provides limited access to the app and core immersion features, while a paid subscription unlocks advanced features (full SRS, unlimited sentence mining, shadowing/pronunciation tools, and full access to the pre-processed video library). The mobile app offers a free 7-day trial for premium features, after which a monthly subscription is required to continue using paid features.
HayaiLearn pros
- AI-powered dual subtitles that show translation and original text
- Clickable pop-up dictionary for instant word lookup
- AI sentence explanations and grammar breakdowns inline
- SRS sentence review (spaced repetition) for retention
- Sentence mining that extracts useful examples from videos
- Shadowing mode for pronunciation practice
- Pre-processed library of 10,000+ Japanese videos ready to study
- Ability to import YouTube videos directly into the study library
- Organize videos into albums and playlists for structured study
- Word frequency lists built from real YouTube input
- Video difficulty analysis to find appropriate comprehensible input
- Searchable video examples for any given sentence or word
- Works across devices (web, mobile, and browser extension)
- Integration with YouTube and Netflix via the Chrome extension
- Saves and tracks word and sentence study statistics
HayaiLearn cons
- Full feature set requires a paid subscription
- Some videos may lack accurate or clean subtitles for parsing
- Quality of AI explanations can vary with complex grammar
- Content availability depends on YouTube/streaming licensing and region
- Browser extension permissions required to integrate with external sites
- Limited support for languages other than Japanese
- Mobile in-app purchases required to unlock premium features
- No guaranteed alignment with formal course curricula or exams
Frequently asked questions about HayaiLearn
What does HayaiLearn do and who is it for?
HayaiLearn converts Japanese YouTube and streaming videos into study material by adding dual subtitles, an AI pop-up dictionary, and sentence explanations so learners can study real-world content; it is designed for beginners through advanced learners who prefer immersion and contextual learning.
Can I use my own YouTube videos with HayaiLearn?
Yes — you can import YouTube videos into the HayaiLearn web app or use the browser extension to study videos directly on YouTube, which then become part of your personal study library or albums.
What study features does the platform include?
HayaiLearn includes SRS spaced repetition for sentence review, sentence mining to collect example sentences, shadowing/pronunciation practice, word frequency lists, video difficulty analysis, and the ability to organize videos into albums and playlists for structured study.
Is there a free tier or trial period?
A free tier is available with limited access, and the mobile app offers a 7-day free trial of premium features so you can test full functionality before subscribing.
How accurate are the AI translations and explanations?
The AI provides parsing, translations, and grammar breakdowns that are generally helpful for learning, but accuracy can vary on complex sentences or noisy subtitles, so users should verify tricky grammar points with other references.
Does HayaiLearn work offline?
HayaiLearn is primarily a web- and cloud-based service that streams and processes video content, so offline study is limited; downloaded or offline modes are not the main focus and full features generally require an internet connection.
Which devices and platforms are supported?
HayaiLearn supports modern web browsers, has a mobile app available through app stores, and offers a Chrome extension to integrate with YouTube and Netflix, enabling study across desktop, tablet, and mobile.
How does SRS sentence review work in HayaiLearn?
Sentences you mine from videos are added to an SRS queue where the system schedules reviews based on recall performance, helping consolidate sentence-level knowledge through repeated, timed practice.
Can HayaiLearn help with speaking and pronunciation?
Yes — shadowing modes and pronunciation practice tools let learners mimic native speech from videos and practice speaking rhythm and intonation, though advanced speaking feedback may be limited compared with live tutors.
Are there limitations related to subtitle quality or content sources?
Yes — the effectiveness of study depends on the availability and quality of subtitles for a video; if subtitles are missing, inaccurate, or auto-generated poorly, AI parsing and explanations may be less reliable and some videos may not be usable.