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SQRL Login

An implementation for SQRL (Secure Quick Reliable Login)
This app is an implementation for SQRL (Secure Quick Reliable Login) on Android.

Before you begin using SQRL to login to websites, your SQRL private identity
must be created. You only need one, probably for life, because it reveals
NOTHING about you, and it’s highly secure. It’s just a very long (77-digit)
random number.

From then on, whenever you login with SQRL to a website, your private identity
is used to generate another 77-digit number for that one website. Every website
you visit sees you as a different number, yet every time you return to the same
site, that site’s unique number is regenerated.

This allows you to be uniquely and permanently identified, yet completely
anonymous.

Since you never need to use an eMail address or a password, you never give a
website your actual identity to protect. If the website’s SQRL identities are
ever stolen, not only would the stolen identities only be valid for that one
website, but SQRL’s cryptography prevents impersonation using stolen identities.

This is as good as it sounds. It’s what we’ve been waiting for.

Packages

Although APK downloads are available below to give you the choice, you should be aware that by installing that way you will not receive update notifications and it's a less secure way to download. We recommend that you install the F-Droid client and use that.

Download F-Droid
  • Version 1.7.1 (53) suggested Added on 2021-01-21

    This version requires Android 4.1 or newer.

    It is built and signed by F-Droid, and guaranteed to correspond to this source tarball.

    Permissions
    • take pictures and videos
      This app can take pictures and record videos using the camera at any time.
    • have full network access
      Allows the app to create network sockets and use custom network protocols. The browser and other applications provide means to send data to the internet, so this permission is not required to send data to the internet.
    • use biometric hardware
      Allows the app to use biometric hardware for authentication

    Download APK 4.4 MiB PGP Signature | Build Log

  • Version 1.7.0 (52) - Added on 2020-04-30

    This version requires Android 4.1 or newer.

    It is built and signed by F-Droid, and guaranteed to correspond to this source tarball.

    Permissions
    • take pictures and videos
      This app can take pictures and record videos using the camera at any time.
    • have full network access
      Allows the app to create network sockets and use custom network protocols. The browser and other applications provide means to send data to the internet, so this permission is not required to send data to the internet.
    • use biometric hardware
      Allows the app to use biometric hardware for authentication

    Download APK 4.2 MiB PGP Signature | Build Log

  • Version 1.6.0 (51) - Added on 2020-01-29

    This version requires Android 4.1 or newer.

    It is built and signed by F-Droid, and guaranteed to correspond to this source tarball.

    Permissions
    • take pictures and videos
      This app can take pictures and record videos using the camera at any time.
    • have full network access
      Allows the app to create network sockets and use custom network protocols. The browser and other applications provide means to send data to the internet, so this permission is not required to send data to the internet.
    • use biometric hardware
      Allows the app to use biometric hardware for authentication

    Download APK 4.0 MiB PGP Signature | Build Log