Setup guides: Zoom, Google Meet, Microsoft Teams.

MeetingDouble registers as a system-level virtual camera through the CMIOExtension API, so every Mac app that asks for a camera sees it. The only thing that varies is where each app hides the dropdown. The three big ones, in order.

Before any of this works, you need MeetingDouble installed and the system extension approved — see the install doc.

Zoom

Quit Zoom completely first (Cmd+Q, not the red dot — see the troubleshooting doc for why). Reopen Zoom.

• Click zoom.us in the menubar → Settings. Or hit Cmd+,.
• Pick Video in the left rail.
• Under Camera, click the dropdown. You should see MeetingDouble alongside FaceTime HD Camera and Continuity Camera.
• Pick MeetingDouble. The preview updates immediately. Zoom remembers the choice forever.

In a meeting you can also switch on the fly: click the small ^ arrow next to the Start Video / Stop Video button at the bottom-left of the meeting window. The same camera list appears.

Full Zoom-specific landing: Zoom virtual camera on macOS.

Google Meet

Google Meet runs in the browser, so the camera dropdown lives inside the meeting room itself, not in a Settings app. Chrome and Safari each remember the picked camera per-site.

• Open a Meet link or start a meeting at meet.google.com.
• In the pre-join screen (where you see yourself before clicking Join now), click the three-dot menu at the bottom-right of the camera preview.
• Pick Settings → Video.
• Under Camera, choose MeetingDouble from the dropdown.
• Close Settings, join the meeting.

If MeetingDouble doesn’t appear, the browser hasn’t been granted camera permission for Meet, or you joined with the lobby disabled and never hit the camera prompt. Reload the tab and grant camera permission when asked.

During a meeting: click the three-dot menu at the bottom of the call UI → Settings → Video. Same dropdown.

Full Meet-specific landing: Google Meet virtual camera on macOS.

Microsoft Teams

The new Teams (the one Microsoft shipped in 2024 to replace the Electron build) keeps camera settings deep inside its own UI. Quit Teams fully before swapping cameras — Teams also enumerates devices at process launch.

• Click the ... (three-dot) menu next to your profile picture, top-right.
• Pick Settings.
• In the left rail choose Devices.
• Scroll to Camera. The dropdown lists every macOS camera. Pick MeetingDouble.
• Close Settings. The preview at the top of the Devices page updates to the new camera.

In an active call: click the ... menu in the call control bar → Device settings. Camera dropdown appears in a sidebar.

Note: Teams running inside a browser tab uses the browser’s camera permission, same as Meet. The dropdown is in Teams’ pre-join Settings panel.

Full Teams-specific landing: Microsoft Teams virtual camera on macOS.

Discord, OBS, Loom, FaceTime

Every other Mac app that lists cameras will find MeetingDouble in the same dropdown without any per-app config. Discord (Settings → Voice & Video → Camera), OBS (Add Video Capture Source → Device), Loom (gear icon → Camera), FaceTime (Video menu) — all the same.

If the app shows MeetingDouble but the feed is black

That’s a MeetingDouble-side problem, not an app-side problem. Open MeetingDouble’s menubar popover, check that the Virtual Camera status is solid green, and verify your real webcam is being captured. See the Zoom troubleshooting doc — the same fixes apply to Meet and Teams.