安全回報SafeCheck: Instant Safety Reporting – Resilient disaster status reporting with offline-first sync

Summary: SafeCheck is a lightweight web app built with React 19 and Firebase that enables instant safety status and location sharing during natural disasters. It supports offline-first sync to ensure messages reach loved ones despite network congestion.

What it does

SafeCheck broadcasts your safety status and precise location with one click during events like earthquakes and typhoons, using Google login for global disaster communication.

Who it's for

It is designed for individuals needing reliable, instant safety reporting during major natural disasters.

Why it matters

It addresses network failures and app delays by providing a zero-friction, offline-ready tool for timely safety communication.