Progressive Web Apps occupy a unique position in the platform landscape: they're websites that behave like native apps. They install to the homescreen, work offline, receive push notifications, and access device APIs — all without going through an app store. For the right use case, PWAs eliminate the cost and complexity of maintaining separate iOS and Android codebases while delivering an experience most users can't distinguish from a native app.
The Technical Foundations
Three technologies make PWAs work. Service Workers are background scripts that intercept network requests and serve cached responses — enabling offline functionality and dramatically improving load performance on repeat visits. The Web App Manifest defines how the app appears when installed: name, icons, splash screen, display mode. HTTPS is mandatory — not just best practice — because service workers require a secure context to register.
When PWA Beats Native
- Content-heavy apps: News, e-commerce, productivity — any app where the primary value is content rather than hardware integration.
- Global markets: Users on low-end Android devices with limited storage strongly prefer PWAs. A 200KB PWA shell beats a 60MB APK download.
- Fast iteration: Ship updates without app store review. Critical bug fixes are live in minutes, not days.
Native wins when you need Bluetooth, NFC, advanced camera APIs, or deep OS integration that the web platform doesn't yet support. For everything else, PWA should be the first serious consideration before committing to native development.