We’re not going to waste our time making a million different icon images ourselves, so go ahead and download Icon Set Creator.
Drag a 1024x1024 version of your icon onto the application and hit Go (the default platform is iOS so you should be good to go here).
Now that you have all of your icons, open up your project in Xcode. In the main project folder, you’ll find a folder called Images.xcassets and a file called AppIcon.
Here you’ll see placeholders for icons in your app. If you want to add iPad or CarPlay icons you can hit the button on the top right corner, Show the Attributes Inspector, to reveal more options. …