Safari 26 on iPhone and iPad makes many websites feel just like apps by...

https://rowansnewwords.tearosediner.net/how-does-safari-handle-payments-inside-a-website-without-an-app

Safari 26 on iPhone and iPad makes many websites feel just like apps by improving Home Screen behavior. When you add a site to your Home Screen, it can now open with the new 'Open as Web App' option