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Soft, even light in front of you: a window you’re facing, or a lamp behind your screen. A bright window or lamp behind you puts your face in shadow, and very dim rooms make any camera guess. If your light changes a lot, say from a sunny office to an evening at home, save an expression in each. Terevu tells you during calibration if the room is too dark or the light is behind you.

Open Your expressions, choose Adjust beside that expression and try another sensitivity. Relaxed gives you more room; Attentive notices smaller shifts. Fine-tune moves it a notch gentler or sharper. If you’ve moved your device or your light has changed, saving a fresh expression from where you’ll sit usually settles it.

Yes, beside your computer. A phone or tablet can’t share its camera with a call on the same device, so take the call on your laptop and stand your phone or tablet beside it. Save your expression from exactly where the device will sit, and Terevu gives you a quiet cue at the edge of your view. It’s just as good for rehearsing before an important meeting. On Android, Terevu is built for rehearsal: stand your phone beside your laptop for a mock interview or a practice call with a friend.

That’s normal; a few centimeters lower or turned slightly is enough for Terevu to read your head as tilted. Stand it as close as you can to where you saved your expression. If the cue stays on and says Your head is turned or tilted while you’re composed, Terevu offers Use this spot: sit as you will on your call, tap it, and hold still for two seconds. Only the position updates; your saved expression stays exactly as it was.

On a phone or tablet, a short line under Drifted names it: your head angle, your chin, leaning in or back, a hand at your face, your mouth holding a shape, looking down, an eye roll, or your expression itself. It disappears as soon as you’re composed again.

On a Mac or Windows PC, turn on Start with every call. Terevu then begins when an app such as Zoom, Teams or Google Meet has both your camera and microphone switched on, and steps back a few seconds after the call ends. It checks only whether they’re switched on, the same signal that lights your computer’s indicator, and Terevu doesn’t access your microphone’s audio. You can always start a session yourself instead.

Windows normally lets one app use the camera at a time. On Windows 11 (version 24H2 or later), Terevu walks you through switching on camera sharing the first time: Settings › Bluetooth & devices › Cameras › your camera › Advanced camera options, then turn on Allow multiple apps to use camera at the same time. Then quit and reopen Teams, Zoom or your browser so it picks up the change.

Yes. On a Mac, drag the small dot beside your camera. On Windows, choose Move the marker from Terevu in the system tray, drag it, then choose Done moving the marker. It stays there for every call.

The cue is meant for you alone. To keep it that way, share a window, such as your slides or a browser tab, rather than your entire screen.

Your purchases belong to your account, not your device: your Apple ID on a Mac, iPhone or iPad and your Microsoft account on Windows. Install Terevu, open Your expressions and choose Restore purchases. There’s no subscription. You pay once for each purchase.

No. Your purchase unlocks room for the same number of expressions on each device where you restore it, but each device keeps its own saved expressions. Your laptop, tablet and phone each see you from a different distance and angle, so each is calibrated on its own.

Purchases are made through Apple or Microsoft, so refunds are handled by them. Apple: visit reportaproblem.apple.com and choose Terevu. Microsoft: see your order history at account.microsoft.com. If anything gets in the way, write to us and we’ll help.

In Terevu, open Your expressions and choose Delete data from this device. It erases every saved expression, your consent and your settings from that device in one step. On a computer, do this before removing the app, because moving it to the Trash can leave saved data behind. On a phone or tablet, deleting the app erases everything too. Your purchases stay with your Apple ID or Microsoft account.

No. Terevu is designed to compare your expression with the ones you’ve saved on your device, and isn’t designed to send anything about your face to us or anyone else. The Biometric Data Policy explains it in full.