A progressive web app (PWA) is a website that behaves like an app: it can be installed on the home screen, works offline and can send notifications – without going through an app store.
Key capabilities
- Installable from the browser to the home screen or desktop
- Offline support through a service worker that caches content and data
- Push notifications (on Android, desktop and iOS home-screen web apps)
- Fast loading after the first visit
- One codebase for every device with a browser
- Updates are instant – no store review
When a PWA is a great choice
- Internal tools for employees: checklists, dashboards, forms
- Customer portals and booking systems
- E-commerce sites that want app-like speed
- MVPs that need to reach all devices quickly
- Content that should also be found via Google
When a native or cross-platform app is better
- You need deep hardware access (Bluetooth devices, advanced camera, background location)
- App-store presence is important for your audience
- Heavy graphics or games
- Complex in-app purchases
How a PWA works technically
- A web app manifest defines name, icons and display mode.
- A service worker intercepts network requests and serves cached content when offline.
- HTTPS is mandatory.
- Local storage (IndexedDB) keeps data until it can sync.
Benefits for businesses
- Lower development and maintenance cost than separate apps
- No store fees or review delays
- SEO visibility like any website
- Easy distribution via link or QR code
Real-world example
A field team uses a PWA to fill in inspection forms. They work offline in basements, and when they are back online the data syncs automatically to the office system – no app-store accounts or device management needed.
We build PWAs with modern frameworks and decide with you whether a PWA, a cross-platform app or a combination fits best.
Planning a project like this? Our AI project assistant asks the right questions for your field and turns your answers into a clear brief – then our team near Munich sends a free, non-binding quote within 24 hours on business days. Start now or read the complete Web Development guide.