What is a PWA?

A progressive web application (PWA) is a web site that can be downloaded to your device and used like an app. The NIOSH Hearing Loss Simulator is an example of a PWA. While a PWA can be used like any regular web page, installing it can provide some advantages. An installed PWA can still be used without an internet connection. It will also appear alongside your other apps for convenient access.

The installation process varies depending on your operating system and web browser.

Installing on iOS

A PWA can only be installed on iOS using the Safari web browser. First, navigate to the site in Safari. Press the "Share" button and select "Add to Home Screen" from the popup. Lastly, tap "Add" in the top right corner to finish installing the PWA. It will now be on your home screen.

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Installing on Android

The default Chrome browser is capable of installing PWAs for Android. First, navigate to the site in Chrome. Press the "three dot" icon in the upper right to open the menu. Select "Add to Home screen." Press the "Add" button in the popup. The PWA is now installed and available on your home screen.

Installing on a Windows PC or Mac

Google Chrome and Microsoft Edge currently have the best support for PWAs on Windows and Mac OS. The installation process is very similar for both browsers. First, navigate to the site you wish to install as a PWA. If the site is a PWA, there will be an icon on the right side of the URL bar. Click the icon then click the "Install" button. Alternatively, you can install the PWA from the "three dot" menu.

On a Windows PC, the PWA will be available in the start menu. On a Mac, the PWA will be in the launcher and in the spotlight search, even in the Dock.

Google Chrome / Edge

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