Life & fun · December 12, 2025
JLPT monster
a japanese learning APP
What it does
I’m a software engineer based in Tokyo. My main stack is JavaScript. I needed a specific tool to study for the JLPT (Japanese Language Proficiency Test) that synced perfectly between my iPhone (commute) and iPad (home). Since I didn't know Swift, I used Capacitor to bridge the gap and relied heavily on Gemini to help speed up the development process. I released it to the Chinese market first (via Xiaohongshu), and the retention has been amazing. Users love the sync feature and the UI.
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