Progressive Web Apps combine the best of web and native apps. They're fast, reliable, and installable—all without app store approval.
PWA Checklist
Core Requirements:
✓ HTTPS
✓ Service worker
✓ Web app manifest
✓ Responsive design
Enhanced Features:
✓ Offline functionality
✓ Push notifications
✓ Background sync
✓ Install prompt
Web App Manifest
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Service Workers
Basic Registration
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Service Worker Implementation
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Caching Strategies
Cache First
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Network First
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Stale While Revalidate
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Install Prompt
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Push Notifications
Request Permission
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Subscribe to Push
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Handle Push in Service Worker
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Background Sync
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Workbox
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Conclusion
PWAs offer native-like experiences with web technology. Start with the manifest and basic service worker, then add offline support and push notifications as needed.
The key is progressive enhancement—the app works everywhere but shines when features are available.