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Salvus

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Anonymous by design.

Salvus aims to warn you in real time about dangerously speeding vehicles and crash black-spots nearby. No names, no plates, no sign-up.

Why Salvus exists

Every year, Bulgaria's roads take hundreds of lives.

This map is real: every point marks a place where someone died in a traffic crash. Salvus was built to give drivers a timely warning as they approach dangers like these.

1,131Lives lost
478Crash black-spots
5,328Crashes recorded

Source: Bulgarian Ministry of Interior (MVR) open accident data.

How it works

A warning while you still have room to slow down.

Salvus turns every driver into an anonymous sensor and warns you out loud about three things: a vehicle speeding nearby, a crash black-spot ahead, and hazards other drivers just reported.

  1. 1

    Drive normally

    Salvus runs quietly in the background and shares only your anonymous position and speed. Never your identity.

  2. 2

    Three kinds of danger are watched

    A vehicle moving dangerously fast near you, spotted in real time across the network. Crash black-spots from official Bulgarian road-safety records, bundled into the app and working with no signal at all. And hazards drivers reported minutes ago.

  3. 3

    You hear it — you never have to look

    The warning is spoken out loud like a navigation prompt, so it comes through a locked screen and a phone on silent. It ducks your music, then hands it straight back. Notifications are optional, and you pick a tone, a voice or silence per kind of warning — all of it free.

  4. 4

    You can warn the road back

    One tap on the dashboard marks a hazard where you are — no form, nothing to read. Report only when it is safe and legal to do so. A second driver has to confirm it, no report carries who sent it, and the zone clears itself within the hour.

Privacy by design

Anonymous to other drivers.

Your identity is never shown to other drivers. Salvus uses only your position and speed, kept briefly, to deliver alerts.

  • No names, no plates

    Alerts never identify the speeding vehicle or its driver. Just “too fast, nearby.”

  • No sign-up

    No account, no email, or phone number needed to use Salvus. On our network you're just an anonymous app ID.

  • Kept no longer than needed

    Your live position is stored only as the latest point, cleared within about 10 minutes of you stopping. If an alert fires, that event is kept for up to 30 days — Pro shows them on your own map.

  • Encrypted on device

    Sensitive app data is sealed in your phone's hardware-backed secure storage.

Free for everyone

Free is the whole app. Pro is the fast lane.

Every safety feature works free, forever: the alerts, the crash-zone warnings, the hazards drivers report, the spoken warnings, and the map of both zone layers. When a country gets busy, free sessions wait briefly in a queue. Pro skips that queue, lets you tune how often each kind of warning may repeat — anywhere from 30 seconds to 10 minutes — and puts every alert you've sent and received on your own map. It costs €49.99/year (≈ €4.16/month) or €6.49/month, and the first 7 days are free.

Common questions

The things drivers ask before installing.

Short answers to the four questions we get most.

How Salvus works

Is Salvus a radar or speed-camera detector?

No. Salvus never shows police, speed cameras or checkpoints, and holds no data about them. It compares how fast vehicles are moving with the speed limit of the road they are on, and it knows where crashes have happened in the past. It is a road-safety warning, not a tool for avoiding enforcement.

Do I have to allow notifications?

No. Notifications are optional. During a drive Salvus delivers the warning itself, over its own live connection, and speaks or sounds it out loud. A driver who declined notifications is still found, still warned, and still counted. Allowing them adds the banner on your lock screen, which is what reaches you when the app is not running.

See the setup guide

Privacy & your data

Do you see my location? Can anyone identify me?

No one can identify you from an alert. It says only that a vehicle is moving too fast nearby, never who, and never which car. No name, email or plate number is attached to you: on our network you are an anonymous app ID. Of your live position we keep only the latest point, and it is cleared within about 10 minutes of you stopping. If an alert fires, that event is kept for up to 30 days so it can appear on your own map with Pro; the alert itself is deleted after 14 days.

Read the privacy policy
Do I need to create an account?

No. Salvus works from first launch with no sign-up, no email and no phone number. You can optionally link an Apple or Google account if you want your data to follow you to a new phone. That is the only reason to.

Your phone

Does Salvus drain my battery?

Salvus uses your phone's built-in background location service and sends a small position update every few seconds, but only while a driving session is running. There is no map to render, no video and no screen time. End the session and it stops completely.

How much mobile data does it use?

Very little. Each update carries a position, a speed and a heading, not photos, video or map tiles, and nothing is sent at all when you are not in a session. Black-spot warnings use no data whatsoever, because the zones already live on your phone.

Availability & getting started

Which phones does Salvus work on?

iPhone and Android, free on both. You will need to allow background location — that is what lets Salvus keep working with the screen off. Notifications are optional: decline them and you are still warned out loud.

Is Salvus free?

Yes. Free and fully functional, with no ads — including the spoken warnings, the reported hazards and both zone layers on the map. When a country gets busy, free sessions may briefly wait in a short queue so the network stays fast for everyone. An optional Pro subscription skips that queue, lets you tune how often each kind of warning may repeat, shows every alert you've sent and received on your own map, and helps keep Salvus running. It costs €49.99/year or €6.49/month, with the first 7 days free. You never need it to be warned.

See all questions

Drive a little safer, starting today.

Salvus is free, anonymous, and takes seconds to set up.

Download on the App StoreGet it on Google Play