I'm a reliable tool builder
Software for photography, color, language, and everyday routines.
Leon Kang
I make software around photography, color, language, and everyday routines.
My projects include native Apple apps, web applications, and reusable development tools. I care about how data is organized, how interfaces explain it, and how the software behaves at the edges.
Shanghai, China
Ship durable iOS tools with thoughtful data handling, offline safety, and long-term maintenance in mind.
Build reliable web interfaces for real-world data, emphasizing clarity, speed, and resilience.
Design interfaces that reduce mistakes, surface critical data, and stay usable over time.
Build data tooling, automation, and lightweight services that keep workflows dependable.
Projects exploring photography, color, language, and everyday routines.
EyeCare A calm 20-20-20 reminder app for protecting your eyes without breaking focus.
EyeCare combines configurable focus and rest timers, notifications, Apple Watch state sync, and widget controls.
ColorU A color workspace connecting named colors and their stories with palette creation and design tools.
ColorU brings color collections, palette projects, contrast checks, and design-token exports into native iOS and macOS interfaces.
ExifSense A privacy-first EXIF metadata viewer and editor for iOS photography workflows.
ExifSense helps inspect, edit, and sanitize photo metadata directly on device, so photographers can keep full control over sensitive location and camera information.
comejp.com A multilingual knowledge atlas for understanding Japan through culture, daily life, cities, food, study, and work.
comejp.com turns scattered information about Japan into a structured, practical guide that is easier to explore, revisit, and use for real decisions.
Send me an email π§: [email protected]