What is iOSScreenCaptureAssistant?

iOSScreenCaptureAssistant (shown as cmio.iOSScreenCaptureAssistant) appears when you connect an iPhone or iPad to your Mac.

What is iOSScreenCaptureAssistant?

iOSScreenCaptureAssistant makes your connected iPhone or iPad screen show up as a virtual camera on your Mac. This lets apps like QuickTime Player, OBS, and other video tools capture or record your device screen.

When does it run?

The process starts when an iOS device is connected to your Mac by USB (or wirelessly on newer systems) and an app asks for the device screen. Common uses include:

• Recording your iPhone screen with QuickTime Player (File, then New Movie Recording, then select the iPhone)
• Streaming your iPad screen through OBS or a similar app
• Developers recording app demos for the App Store
• Showing an iOS app during a meeting or talk

How do you use it?

1. Connect your iPhone or iPad by USB
2. Open QuickTime Player
3. Choose File, then New Movie Recording
4. Click the dropdown arrow next to the record button
5. Select your iOS device as the camera source

Your device screen will appear in the QuickTime window, ready to record.

Does it use a lot of resources?

It uses a fair amount of CPU while streaming the device screen, since it is processing a live video feed. When no app is capturing the screen, it sits idle.

Should you worry?

No. It is a standard macOS feature for capturing iOS device screens. It only runs when an iOS device is connected and an app is using its screen.

Enjoyed this post?

Well, you could share the post with others, follow me with RSS Feeds and/or send me a comment via email.

Tags