Hide the block in the application or define is an application already installed?

Can you please share your website URL with us?

https://pldev.freefitt.com/
test6
123456

Could you help me?

And I think there are many people with the same problem who use “Add To Home On Element Click”/

Can you please share some screenshots related to your issue. So we can easily understand the problem.

I gave you the link above.

I need to show this banner on mobile, but hide if the app already installed
it in the app.
Or at least hide in the application.

How to determine that the application is installed?
Or that the user has now opened the site through the application?

https://drive.google.com/file/d/14_LXInKABDZo9LyVCcN-YmAp7yaLbx7S/view?usp=sharing

Hi,
For “Add To Home On Element Click” please follow this tutorial https://pwa-for-wp.com/docs/article/how-to-add-to-home-on-element-click/

To detect app is already installed or not use below code

window.addEventListener('appinstalled', function(evt){
  /*DO YOUR CODE*/
});

To check current page is open in Application use below codes ()
//For other browsers
if (window.matchMedia('(display-mode: fullscreen)').matches){}

var isSafari = !!navigator.userAgent.match(/Version\/[\d\.]+.*Safari/);
var iOS = /iPad|iPhone|iPod/.test(navigator.userAgent) && !window.MSStream;
if (isSafari && iOS && window.navigator.standalone == true) {
  console.log("You are using Safari on iOS!");
}