Safari 26 on iPhone and iPad brings a fresh feel to many websites by making...

https://spark-wiki.win/index.php/What_Should_Developers_Test_First_When_Making_a_Site_Feel_Like_an_App_on_iPhone%3F

Safari 26 on iPhone and iPad brings a fresh feel to many websites by making them act just like apps. When you add a site to your Home Screen, it now launches without the usual browser bars, giving you a clean, full-screen experience