Proximity Lock
Tracks the RSSI signal of your Bluetooth devices. When all tracked devices drop below your configured threshold for a set delay, your Mac locks automatically.
macOS · Security · Bluetooth
Radius
Your Mac locks itself when you walk away. Automatically.
Radius monitors your Bluetooth devices and locks your screen the moment they move out of range — so your Mac is always secure, without you lifting a finger.
See it in action
How It Looks
Screenshots and videos coming soon.
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What it does
Features
Everything you need to keep your Mac secure without thinking about it.
Intruder Detection
Detects mouse or keyboard activity while you're away and instantly locks the screen — stopping unauthorized access before it starts.
Wi-Fi Safe Zones
Whitelist your home or office Wi-Fi networks to suppress auto-locking when you're on a trusted network.
Global Hotkey
Toggle monitoring on and off with a customizable keyboard shortcut — no need to open the app.
Menu Bar App
Lives in your menu bar with a clean popover. Manage devices, see signal strength, and adjust settings — all without a dock icon.
Fine-Tuned Control
Configure RSSI thresholds, lock delay, signal smoothing, and per-device tracking to match your exact environment.
Before you start
Requirements
Radius needs a few system permissions to work its magic.
macOS 13+
Requires macOS Ventura or later.
Bluetooth
Permission to scan and read BLE device signal strength.
Notifications
To alert you when your Mac locks or unlocks.
Location
Needed only for Wi-Fi SSID detection (Safe Zones).
Input Monitoring
Must be granted manually in System Settings for Intruder Detection (keyboard).
Ready?
Get Radius
Secure your Mac effortlessly. One purchase, no subscription.
$—
One-time purchase
- Proximity-based auto-lock
- Intruder Detection (Pro)
- Wi-Fi Safe Zones (Pro)
- Lifetime updates
Payment will be available soon.