Your computer locks itself when you walk away.
SignalLock is a privacy-first, cross-platform desktop utility that automatically locks your computer when a trusted Bluetooth device moves out of range. Nothing leaves your machine — no cloud, no account, no telemetry, no location tracking.
| Platform | Repository | Status |
|---|---|---|
| macOS | signallockapp/macos |
Available |
| Windows | signallockapp/windows |
Available |
| Linux | signallockapp/linux |
Phase 0 — spike validation |
- Pick a trusted BLE device once — Apple Watch, AirPods, Galaxy Watch, fitness band, or a BLE keychain tag.
- SignalLock watches its signal strength quietly in the background.
- When the device leaves range and stays away for your configured delay, the screen is locked.
- That's it. SignalLock never unlocks anything — you always use your OS password, PIN, or biometric.
- No internet connection required.
- No location tracking — only Bluetooth signal strength of devices you choose.
- No personal data collected, stored, or transmitted.
- No telemetry, no analytics, no accounts.
All apps are licensed under the GNU General Public License v3.0. See each repository's LICENSE file for the full text, or https://www.gnu.org/licenses/gpl-3.0.html.
