Über Lee Sanghoon
I build practical, field-ready web apps for welding engineers, inspectors, and industrial crews — including tools like the Heat Input Calculator and steel weight/lifting calculators at iskorea.org.
Every app is designed to work fast on a smartphone right on the job site, with multilingual support (KO, EN, ZH, JA, ES) and offline PWA caching.
Your coffee helps cover server/domain costs and supports building more free engineering tools for field teams worldwide. Thank you!
Every app is designed to work fast on a smartphone right on the job site, with multilingual support (KO, EN, ZH, JA, ES) and offline PWA caching.
Your coffee helps cover server/domain costs and supports building more free engineering tools for field teams worldwide. Thank you!
Neueste Supporter