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Simpler than a physical filter
No film to buy, cut and stick on every device. Cyclope installs once and protects your five platforms, without permanently dimming your screen.
Adaptive privacy filter
Your screen, for your eyes only.
Cyclope detects prying eyes and instantly darkens your screen. Everything happens on your device: no image stored, no connection.
100% local · Zero network · No data collected
Android iOS macOS Windows Ubuntu Debian Fedora Arch Linux
Why Cyclope
On a train, plane, open-plan office or café, your screen can be read over your shoulder. Confidential documents, messages, credentials: everything becomes visible to those around you.
Adaptive, not fixed
A physical filter reduces the viewing angle continuously, even when you are alone. Cyclope only reacts when a prying gaze is present, then restores a clear screen once the threat disappears.
Built for security
No account, no cloud, no connection. Everything is processed on your device and nothing is recorded. The green camera dot on your system remains your guarantee of transparency.
One tool, across all your devices, with no trade-off on your data.
Discreet, continuous vigilance
Prying eyes detected
The front camera spots a second face and immediately masks your screen.
Instant masking
Reaction in less than the blink of an eye the moment an intruder appears.
Adaptive vignette
The screen darkens based on your gaze to limit side-angle reading.
Glasses compatible
Works with prescription glasses and lightly tinted sunglasses.
100% offline
Fully local processing. No network connection, no cloud.
Five platforms
Android, iOS, macOS, Windows and Linux.
How it works
- 1
The camera watches
The front camera detects your presence and any potential observers.
- 2
Cyclope analyses
Context is analysed locally, in real time, without ever recording anything.
- 3
The screen protects
The display darkens for intruders while remaining clear for you.
Download Cyclope
Android
Version 1.2.3
Google-free: compatible with /e/OS and de-Googled devices
Google Play — Coming soon
iOS
App Store — Coming soon
macOS
Version 1.0.0
Mac App Store — Coming soon
Windows
Version 1.0.0
Microsoft Store — Coming soon
Linux
Version 0.1.0
Frequently asked questions
- Does Cyclope collect my data?
- No. No image is recorded or transmitted. All processing is local and Cyclope does not connect to any network.
- Why does a green dot appear?
- Your system displays it whenever the camera is in use. This is normal, and proves that nothing is hidden.
- Does Cyclope work without Google, on /e/OS?
- Yes. The Android APK installs directly, without the Play Store or Google services, on de-Googled devices — including /e/OS. Learn more about /e/OS →
- What does 'testing' mean?
- Windows, Linux and iOS are in testing phase: functional but still being validated. Your feedback is welcome.
- How much does it cost?
- Cyclope is free, on all platforms.