Progressive Web Apps are user experiences that have the reach of the web, and are:

  • Reliable – Load  and never show the down sour, even in uncertain network conditions.never show the down sour while  loading in uncertain network conditions
  • Fast-Progressive Web apps Rapidly to user interaction with smooth animations and no janky scrolling.

  • Engaging-Immersive user experience like a natural app on the device.

This new level of quality allows Progressive Web Apps to earn a place on the user’s home screen.


When launched from the user’s home screen, service workers enable a Progressive Web App to load instantly, regardless of the network state.

Service workers enable a web app to load rapidly despite of the network state while launched from the users home screen.

A service worker, written in JavaScript, is like a client-side proxy and puts you in control of the cache and how to respond to resource requests. By pre-caching key resources, you can eliminate the dependence on the network, ensuring an instant and reliable experience for your users.

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53% of users will abandon a site if it takes longer than 3 seconds to load! And once loaded, users expect them to be fast—no janky scrolling or slow-to-respond interfaces.

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Progressive Web Apps are installable and live on the user’s home screen, without the need for an app store. They offer an immersive full-screen experience with help from a web app manifest file and can even re-engage users with web push notifications.

Progressive Web apps are live and installable on the user’s home screen without the requirement for an app store. They offer a familiar experience with help from a web app manifest file and can even re-engage users with web push notifications.

The Web App Manifest allows you to manage how your app appears and how it’s launched. You can stipulate home screen icons, the page to load when the app is launched, screen orientation, and smooth whether or not to show the browser chrome.

Why build a Progressive Web App?

Building a high-quality Progressive Web App has incredible benefits, making it easy to delight your users, grow engagement and increase conversions.

  • Worthy of being on the home screen

Chrome prompts users to add the Progressive Web App to their home screen When the Progressive Web App criteria are met.

  • Work reliably, no matter the network conditions

Service workers enabled Konga to send 63% fewer data for initial page loads, and 84% fewer data to complete the first transaction!

  • Increased engagement

Web push notifications helped eXtra Electronics increase engagement by 4X. And those users spend twice as much time on the site.

  • Improved conversions

The ability to deliver an amazing user experience helped AliExpress improve conversions for new users across all browsers by 104% and on iOS by 82%.


Lighthouse, an open-source, automated tool for improving the quality of your Progressive Web Apps, eliminates much of the manual testing that was previously required. You can even use Lighthouse in continuous integration systems to catch regressions.

 For Improving the quality of your progressive apps.Light, ann open source tool, automated tool for continuous integration systems to catch regressions