We built Shield because locking your screen should not be something you have to remember. Every time you stand up, your screen is exposed. Sensitive documents, personal messages, financial data, all visible to anyone nearby. Shield uses your camera and on-device AI to detect when you leave and locks automatically. When someone else looks at your screen, it blurs instantly. No cloud, no servers, no data leaves your device. The camera feed is processed in real time and discarded immediately. Not a single image is ever saved. Your face is stored as a mathematical template, not a photo. Shield works entirely offline after a one-time license activation. One payment, lifetime protection.