Privacy & data breach monitoring

Check if your data has been leaked.

One scan shows which data breaches contain your email address and passwords. Breach Watchdog then monitors your email address and alerts you to every new breach.

Eight features.
One secure overview.

Breach Watchdog combines eight features in one app, so you don't have to worry about data breaches.

[01]

Email breach check

See which data breaches contain your email address and what data was leaked. Combines Have I Been Pwned, LeakCheck and XON.

[02] // risk score

Personal risk score

A clear meter shows how high your risk is. An attack profile shows what cybercriminals can know about you.

[03]

Password check

Check if your password has been leaked, without it leaving your device. Only a partial hash is sent via k-anonymity.

[04]

Breach Monitor

Add email addresses and automatically receive a notification when a new data breach is discovered, with a widget on your home screen.

[05]

URL scanner

Check if a link is safe before clicking it. Scans for malware, phishing and other threats via Google Web Risk.

[06]

Domain check

See if a domain is protected against email spoofing. Checks SPF and DMARC records and shows WHOIS information.

[07]

Smart advice

Not every breach requires the same action. Breach Watchdog recognises old or defunct platforms and adapts the advice accordingly.

[08]

Privacy first

No account. No storage of emails. Passwords never leave your device.

Read more →

Your data stays yours.

Built with privacy as the starting point. No tracking, no storage of your data on our servers, no mandatory account.

01No account required
02No email storage
03Password never leaves your device
04Encrypted on your device
05No tracking

Start free.
Buy Pro once.

Free includes unlimited email scans with your risk score and attack profile, unlimited password, URL and domain checks, and monitoring for 1 address once a week. Pro unlocks the full report, up to 10 addresses and alerts when a check finds a new breach. A one-time purchase, no subscription.

Free
Free forever

No account required

  • Unlimited email scans + risk score
  • Unlimited password, URL & domain checks
  • 1 monitored email address
  • Weekly breach check
Get it on Google Play
Lifetime
See the price in the Play Store · one-time

One-time purchase, no subscription

Pro forever on this Google account

  • Everything in Free
  • Up to 10 monitored email addresses
  • Alert when a check finds a new breach
  • Full detailed report
  • Save and review reports
  • Widget on home screen
Get it on Google Play

FAQ

The essentials on security and privacy.

Is it safe to enter my email address?

Yes. Your email address is only used to check if it appears in known data breaches. We don't store it, don't link it to an account and never sell it. The check runs via encrypted connections to external sources like Have I Been Pwned, LeakCheck and XON. Once the result is on your screen, nothing of your address has been saved. You also don't need an account: the app works completely without registration.

How do you check my password safely?

Your password is converted on your device into an unreadable string of characters, a fingerprint of your password, but not the password itself. We then only send the first five characters of that string. That's enough to compare with a database of leaked passwords, but far too little for anyone else to do anything with. Your real password never leaves your device.

Which sources do you use?

Breach Watchdog combines Have I Been Pwned, LeakCheck and XON for email data breaches, and Google Web Risk for the URL scanner.

What does the Breach Monitor do?

The Breach Monitor checks your email addresses in the background for new data breaches. Free covers 1 address with a weekly check. Pro monitors up to ten addresses and notifies you when a check finds a new breach. How soon that happens depends on your check interval. Via the widget on your home screen you can see at a glance whether everything is still safe.

Is there a free version?

Yes. Free includes unlimited email scans with your risk score and attack profile, unlimited password, URL and domain checks, and monitoring for 1 address once a week. Pro unlocks the full report, up to 10 addresses and alerts when a check finds a new breach.

Is Pro a subscription?

No. Pro is a one-time purchase of €4.99 via Google Play, no monthly or yearly billing. After purchase, Pro stays linked to your Google account (restore via “Restore purchases” after reinstall).

Ready in ten seconds

Start your free scan.

No account, no hassle. See directly where your data has been leaked.

Get it on Google Play