QuietGlass blurs macOS screens via AirPods tracking

Physical screen privacy tools often feel clunky or battery-draining, but orchestrating AirPods spatial sensors with native macOS vision frameworks creates a clever, low-friction defense against shoulder surfers.

• –Smart sensor synergy: Using AirPods motion sensors to infer attention avoids continuous webcam usage, saving battery and eliminating constant camera paranoia.
• –True local processing: Running all facial detection, owner verification, and window masking locally in Swift respects user privacy without cloud telemetry.
• –Targeted concealment: Selective controls—such as obscuring background windows, sensitive text blocks, or maintaining a clear active window in Focus mode—make it usable during actual work.
• –False positive risk: Background pedestrians or natural head movements in busy coffee shops may trigger unintended screen blurs unless sensitivity and gaze thresholds are tightly calibrated.