Products
Learning tools built by a developer to solve real-world immersion pain points.

YomiPlay
AI Speech Recognition for audio/video Japanese learning (iOS App)
YomiPlay is a premium iOS application that transforms your favorite audio and video into versatile learning materials. Using on-device AI recognition for precision subtitling, it enables immersive shadowing to master the language naturally while supporting subtitle editing and resource sharing.
- Automated Furigana (reading) system
- Gairaigo / English etymological annotations
- On-device AI-powered auto-subtitling
- Immersive shadowing & sentence-by-sentence playback
- Subtitle editing & resource sharing

YomiMark
Japanese reading enhancement for your browser
YomiMark is a browser extension that makes reading Japanese on the web seamless. It adds furigana to kanji, supports Gairaigo to English etymological mapping, and empowers you to read faster and learn more effectively.
- Gairaigo / English etymological mapping
- Automated Furigana (reading) system
- Select-and-lookup annotations
- Chrome browser extension