EyesOff uses your webcam to detect when someone unauthorised is looking at your screen — and alerts you in real time. No cloud, no data leaves your machine, everything runs 100% on-device. Most privacy tools protect against remote threats. Nobody's protecting against the person sitting two seats away at a coworking space, coffee shop, or open-plan office. Screen privacy filters are static and clunky. EyesOff is invisible until it needs to act. 30 seconds to set up. Works on Mac and Windows.