Similar to WebObjects

Automator (macOS)

AVFoundation

BootX (Apple)

BridgeOS

Carbon (API)

Classic Environment

Core Animation

Core Audio

Core Data

Core Foundation

Core Image

Core Text

Cover Flow

Dashcode

DVD Player (macOS)

Enterprise Objects Framework

FileVault

Font Book

Gatekeeper (macOS)

GNUstep

Grapher

IMessage

Inkwell (Macintosh)

ISync

Keychain (software)