Overview
HayaiLearn teaches Japanese through immersion in real video: learners watch YouTube (and via the Chrome extension, Netflix) content while the platform layers AI tools over playback — dual subtitles (JP/EN/JP+EN/OFF) with furigana and tokenization, a popup dictionary with contextual meanings and conjugation breakdowns, grammar pattern detection with in-player lessons, and AI sentence explanations. Videos can be imported into the web app and organized into albums, with video difficulty scoring (1–10) and comprehension tracking.
The "Dojo" practice hub provides review drills — reading and listening flashcards plus multiple-choice drills with spaced repetition based on FSRS — and on the top plan, AI role-play conversations plus shadowing and writing feedback. Learners track word states (New/Learning/Known), XP, levels, and streaks, and can search example sentences playable at the exact video moment. It is an immersion tool rather than a from-zero course: the official guide recommends knowing Hiragana, Katakana, basic kanji, and basic verb conjugations first.
HayaiLearn is by Fallen Cloud Studios LLC. Pricing is annual: Pro at $84/year ($7/month) with unlimited video immersion, YouTube imports, flashcard drills, and smart subtitles; Platinum at $168/year ($14/month) adding AI role-play conversation and shadowing/writing feedback. Both yearly plans include a free-week trial; no permanent free tier is stated officially.
Official pricing (verified 2026-10-01): Pro — $84/year ($7/month): free-week trial; unlimited video immersion; import YouTube videos; flashcard (reading & listening) drills; smart subtitles. Platinum — $168/year ($14/month): free-week trial; everything in Pro plus AI role-play conversation, shadowing & writing feedback.
Key Features
- AI-parsed interactive subtitles (tokenization, furigana, JP/EN/JP+EN/OFF)
- Popup dictionary with contextual meanings, part-of-speech/JLPT/frequency tags, conjugation breakdowns
- Grammar pattern detection with in-player lessons
- AI sentence explanations
- Video difficulty scoring (1–10)
- Comprehension tracking
- Video feed with personalized lanes
- Sentence mining with notes
- Albums
- Dojo review drills (spaced repetition via FSRS)
- AI role-play conversation (Platinum)
- Shadowing & writing feedback (Platinum)
- Word states (New/Learning/Known)
- XP, levels, and streaks
- Example-sentence search
- Video library and video import tools
- iOS and Android apps
- Chrome importer extension with limited Netflix support
