GuardianGuardian

Protecting the
peace of your family

Install from Google Play
100% On-DeviceZero External Servers24+ Fraud Scenarios
Guardian Principle

We believe true security should never invade your personal privacy.

When scammers call

Guardian recognizes the manipulation script the moment it starts — and says so on screen.

Guardian Active
Context evaluation...

«Your funds are at risk — transfer them to a safe account immediately»

Detected instantly

Artificial urgency and a fake 'safe account' demand — a classic impersonation script flagged on-device.

«Mom, I'm in trouble — I urgently need money»

Manipulation detected

Emotional pressure plus financial demand matched against the known relative-in-trouble scenario.

«Stay on the line and read me the code from your SMS»

Blocked script

A request for SMS codes is a hard red flag — Guardian shows a persistent warning until the call ends.

Warning: Potential scam attempt detected
Just now

Why Guardian

Protection against manipulation — without invading your personal space.

On-Device AI

100% on-device analysis

The speech-pattern model runs inside your phone's memory — microphone input is evaluated locally and the alert appears instantly on screen.

0 bytes of audio leave the device
Privacy First

Guardian vs cloud caller-ID apps

Traditional caller-ID services upload your contacts and call data to a shared cloud database.

Guardian has no external servers — no sign-up, no contact upload, nothing leaves the phone.

Zero Interference

Never interrupts your call

Guardian never drops, blocks, or hijacks calls. It warns on screen — the conversation stays yours.

Offline Ready

Works anywhere, sips battery

Protection stays on in roaming, in the metro, at the dacha — no internet needed.

How to install

Three steps — straight from Google Play.

01

Open Google Play

Tap the button below or find Guardian in the Play Store.

Open Play Store →
02

Install in one tap

A standard Google Play install — no sign-up, no card details, no extra settings.

03

Activate protection

Grant the call-related permission once — Guardian then protects every call automatically.

Put a Guardian on your family's phones

Free • No ads • No accounts • Works offline

Install from Google Play

Frequently asked questions

Honest answers about what Guardian does — and never does.

Correct. The detection model runs entirely on your device — there are no Guardian servers to send anything to. The app holds no INTERNET permission, so audio, numbers, and call data physically cannot leave the phone.