PrivacyGuard Suite · On-device privacy tools
PrivacyGuard is a suite of on-device privacy tools — no cloud cameras, no cloud file storage, nothing about you leaves your machine unless you decide it should.
PrivacyGuard Suite
PrivacyGuard isn't one app. It's three, built on the same rule: privacy is the default, not a setting you have to find. Screen Shield watches for shoulder surfers and blacks out your screen before they see anything. Breach watches your machine itself for signs something's already wrong. Share moves files to someone else without ever putting them on a server. Different jobs, same architecture — everything runs locally, nothing phones home with your data.
Visual privacy
Detects a second face reading your screen and shields it instantly — before they read a word.
Detection runs entirely on-device — no frame of footage ever leaves your computer.
Host awareness
Watches your own machine — processes, connections, autostart entries — so compromise doesn't sit there unnoticed.
Local triage, not a cloud dashboard: the data stays on your machine too.
Private handoffs
Sends a file through a private link without ever uploading it anywhere.
Your machine is the server for as long as the link is open.
Screen Shield stops someone from reading your screen in the moment. Breach tells you if someone already got further than that. Share lets you hand off a file without doing the thing that creates most privacy incidents in the first place — putting it on a server you don't control. Use one, use all three: none of them require the others to work, but they all refuse to use the cloud as a shortcut.
No cloud. No uploads.
Detects. Decides. Shields.
No data tracking. Ever.
Windows & macOS
How it works
Three steps, entirely on your device — nothing ever leaves your machine.
Your webcam continuously checks for another face entering the frame — nothing is recorded or sent anywhere.
An on-device machine learning model makes the call in real time, right on your machine. No cloud round-trip, ever.
The moment a second face is detected, PrivacyGuard automatically shields your screen — near-instant, no action needed.
The core difference
Everything PrivacyGuard does runs locally. No uploads, no remote storage, no account required — the opposite of typical cloud-based monitoring tools.
Cloud-based tools
PrivacyGuard — on-device
Built for real situations
Keep sensitive work private in shared desks and open-plan floors.
Work from anywhere without wondering who's reading over your shoulder.
Roommates and family nearby doesn't mean your screen is public.
Airports, trains, and hotel lobbies are full of unfamiliar eyes.
Banking, health records, or client data — shielded the moment it matters.
Get started
A one-time $3.69 purchase unlocks the Windows and macOS builds, with free updates for life. Breach early access currently accepts the same license key; Share remains a separate free beta with no license required.
$3.69 in memory of Nikola Tesla, whose work helped power the modern world.
