On the standards track: Yes
Is Experimental: No
Is Deprecated: No
In Chrome version 64 on 2018-01-23
In Chrome Android version 57 on 2017-03-16
Not in Deno
In Edge version 79 on 2020-01-15
Not in Firefox
Not in Firefox for Android
Not in Internet Explorer
In Quest Browser version 5.0 on undefined
Not in Opera Note: Opera exposes the onappinstalled event handler, but the event is never fired.
Not in Opera Android Note: Opera exposes the onappinstalled event handler, but the event is never fired.
Not in Safari
Not in Safari on iOS
In Samsung Internet version 7.0 on 2018-03-16
In WebView Android version 57 on 2017-03-16
Not in WebView on iOS