Taperlark / Preen
A video call starts the moment your camera light turns on, and macOS gives you no reliable way to check how you look before that happens. FaceTime and QuickTime open their own camera windows only after a call is already live, meeting apps default to whatever crop and exposure the app picked for you, and the built in Camera app is not built to live in the background while you work. The result is a familiar habit: joining a call a few seconds late so there is time to glance at a thumbnail and adjust the angle of a laptop lid.
Preen exists to remove that scramble. It is a small menu bar utility that keeps a live camera preview one click away, so checking your framing, your lighting, and whether the room behind you is presentable takes a second rather than an interruption. These notes cover how Preen is built: the reasoning behind specific interface choices, what changes between releases, and the macOS camera and permission behavior that shapes what a menu bar camera preview can and cannot do on a given system.
Reports since September 2025 share one shape: the iPhone vanishes from Mac camera lists wirelessly, works over USB, and comes back while another camera is plugged in. The quick checks, the desk Mac reboot trap, and the workarounds users say hold up, with every claim dated and attributed.
Hand Mirror's free one click check is genuinely good, which is why a reason to replace it needs to be specific. Quick Camera, Cam Dot, Rearview Mirror, Mirror Magnet, FaceScreen, Camera Preview and Preen compared by window model, microphone features and pricing, with a keep Hand Mirror verdict included.
The pre meeting ritual for a Mac: the Photo Booth glance, the QuickTime mic level, Zoom's test meeting, the Teams test call and Meet's green room, in the order that catches problems soonest, plus the one failure none of those tests can see coming.
Every way to preview your camera on a Mac: Photo Booth, QuickTime Player, FaceTime, a browser test page, five paid menu bar apps plus one free one, and Preen, judged by whether each releases the camera afterward, shows which camera answered, works while another app has it, and says anything about your mic.
Preen opens one capture session for a quick camera check before a call, then gets out of the way again. Here is how switching cameras, muting the microphone, and the floating window actually work under the hood, plus two rough edges and who should look elsewhere.
A menu bar app that watches your camera is asking for trust. Here is the single entitlement in Preen's signed release, the literal permission prompt, why the camera light goes off when it does, and why muting your mic in Preen will not move the mute button in your meeting app.
Camera choice on a Mac is set per app, not once for the whole system. Here is where the picker lives in Zoom, Teams, Meet, Slack and FaceTime, why Continuity Camera takes over silently, and how to confirm the change actually took.