I want to run my application on android and Iphone mobiles and I would like to put a message like the one in the attached image so that an icon is added to the mobile desktop.Any ideas?
In my applications with Phprunner, when I wanted to give my users a message I have made it modifying the "login.php" page and explaining, in HTML, the message.
I think that in the rest of the pages, it is upset for users, more when they are working from a mobile.
This is a criterion, but any other that satisfies you is also valid,
Google for PWA (progressive web app) and try following this tip: