Offline-First PWA Guide

What is a PWA?

A Progressive Web App (PWA) is a website that works like a native app. It can be installed on your device, works offline, and sends notifications — all without downloading from an app store.

How Offline Storage Works

Waitlist App uses localStorage to save all your data directly on your device. This means your waitlist, reservations, settings, and counter are always available, even without internet.

Service Worker

A service worker runs in the background and caches the app's files. After your first visit, the entire app loads from cache, making it instant and reliable regardless of network conditions.