If you have a newer iPhone, this should be pre-installed, but if not, you can find it in the App Store. So long as your iPhone is running iOS 12.0 or higher, you’re good to go.

Changing Mac app icons using the built-in method macOS allows you to change an app's icon manually, but it has one frustrating drawback. Getting started, however, is easy.

Find the app you wish to change the icon for. Right-click on it, and select Get Info. In the newly launched window, you will find the name of the app and its icon at the top.