A Progressive Web App (PWA) is a web application that uses modern web capabilities to deliver an app-like experience. It loads fast, works offline, and can be installed on a phone without an app store.
What Makes a PWA
- Service worker. A script that runs in the background, enabling offline access and caching
- Web app manifest. A JSON file that defines the app name, icons, and display mode
- HTTPS. Required for service workers
- Responsive design. Works on any screen size
Key Benefits
- No app store needed. Users install directly from the browser
- Offline functionality. Service workers cache content for offline use
- Fast loading. Cached resources load instantly
- Lower development cost. One codebase for web and mobile
- No update review process. Deploy updates instantly, no Apple/Google approval
- Discoverable. Indexed by search engines, unlike native apps
PWA vs Native App
- PWA. Faster to build, cheaper, one codebase, no app store fees, but limited hardware access
- Native. Better performance, full hardware access, push notifications, app store distribution
When to Choose a PWA
- Content-driven apps (news, catalogs, portals)
- Budget-conscious projects
- You need both web and mobile quickly
- Your users may have limited storage
When Native Is Better
- Heavy graphics or gaming
- Deep hardware integration (Bluetooth, NFC, sensors)
- You need app store monetization
How Switch 2 One Helps
We build PWAs that work seamlessly across web and mobile. Book a free strategy session.