Progressive Web App
Definition
A website that can be installed on devices and work offline like a native app. Combines web accessibility with app-like features.
What is a Progressive Web App?
A Progressive Web App (PWA) is a website built with modern web technologies that can function like a native mobile app. It can be installed on your home screen, work offline, send push notifications, and access device features.
Starbucks, Pinterest, Uber, and Twitter all offer PWAs. They combine the reach of the web with the experience of an app.
PWA Features
Installable
Users can add the PWA to their home screen without visiting an app store. It launches in its own window, like a native app.
Offline Capable
Service workers cache content, allowing the app to work without an internet connection – or at least show cached content and queue actions for later.
Push Notifications
Engage users with notifications, just like native apps.
Fast and Reliable
PWAs prioritise performance, loading quickly even on slow connections.
PWA vs Native App
| Factor | PWA | Native App |
|---|---|---|
| Distribution | URL, no app store | App store required |
| Installation | Optional, instant | Required download |
| Updates | Automatic | User must update |
| Development cost | One codebase | iOS + Android separate |
| Device access | Limited | Full access |
| Discoverability | Search engines | App stores |
Business Benefits
Cost Effective
Build once for all platforms instead of separate iOS and Android apps.
Higher Engagement
Install prompts have higher conversion than app store downloads. Starbucks saw 2x daily active users after launching their PWA.
SEO Benefits
Unlike native apps, PWA content is indexable by search engines.
Lower Friction
Users can try before installing. No app store download required.
When to Consider a PWA
PWAs work well for businesses wanting app-like features without app store complexity – especially for repeat-use services like ordering, booking, or content consumption.