Fn3 - Screen Privacy Tool

About this app

Fn3 is a lightweight and elegant macOS utility designed to protect your privacy instantly. Whether you're working in a coffee shop, giving a presentation, or simply need a moment of screen privacy, Fn3 has you covered. Key Features: Instant Screen Coverage: Triple-tap the Fn key to instantly overlay all your screens with a frosted glass effect Multi-Monitor Support: Automatically covers all connected displays simultaneously One-Click Exit: Simply click anywhere on the screen or press ESC to dismiss the overlay Menu Bar Control: Quick access from the status bar for manual control Smooth Animations: Beautiful fade-in and fade-out transitions for a polished experience Zero Dock Clutter: Lives quietly in your menu bar without taking up Dock space Lightweight: Minimal system resource usage, runs silently in the background Perfect For: Protecting sensitive information during screen shares Preventing shoulder surfing in public spaces Taking quick breaks without closing applications Maintaining focus during presentations Preventing screen burn-in on OLED displays Privacy First: Fn3 operates entirely locally on your device. No data collection, no internet connection required, no tracking. Your privacy is truly yours. How It Works: Launch Fn3 - it sits quietly in your menu bar Triple-tap the Fn key or click the menu bar icon All screens are instantly covered with a semi-transparent overlay Click anywhere or press ESC to return to your work Fn3 requires Accessibility permissions to detect the global keyboard shortcut. This permission is only used for monitoring the Fn key triple-tap gesture and nothing else. Simple. Fast. Private. That's Fn3.

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1. First observed Aug 8, 2026 · 2:42 PM $1.99