Similar to WebKit

Blink (browser engine)

Secure Enclave

AirDrop

AirPrint

Apple Books

Apple Intelligence

Apple Push Notification service

AVFoundation

Core Animation

Cover Flow

IMessage

Metal (API)

Notes (Apple)

Objective-C

Darwin (operating system)#OpenDarwin

VoiceOver

Apple Account

Apple Configurator

Apple File System

Apple Pay

Apple Podcasts

Sign in with Apple

AirPlay

Calendar (Apple)

Calculator (Apple)

Game Center

Control Center (Apple)

Find My