Pulse
Logger and network inspector for Apple platforms
... and a network proxy for automatically capturing network requests. PulseUI.framework (iOS, macOS, watchOS, tvOS) containing all the UI components you’ll see on the screenshots. Document-based Pulse apps (iOS, macOS) to view logs shared from other devices. As a developer, you integrate the frameworks into your app and configure them to capture logs and network traffic. You then add a way to display a Pulse console to view logs right on the device.