Attnom for Android

Three apps for Android.

Attnom Prism, Attnom Tools and Attnom Academy are in a closed test on Google Play. Each one is written for Android, not a website in a frame.

Attnom Tools

Closed test on Google Play

Pocket tools that cannot go online. The app has no internet permission at all.

  • Decode an address, a hash or a signature
  • Scan a page to a searchable PDF
  • Check an address against the sanctions list, offline
com.attnom.tools
Join the test on Google PlayUse it on the web

Attnom Academy

Closed test on Google Play

Free Maths and Science books on a path of five levels. They read with no internet.

  • The path and the first book come with the app
  • Fetch a book once, then read it offline
  • No account, no tracking, no adverts
com.attnom.labs
Join the test on Google PlayUse it on the web

Closed test

How to join the test

Google has new apps run a closed test before they go public. Testers install from Google Play like any other app, and get updates the same way.

  1. 1

    Get on the list

    Ask at support@attnom.com with the address of the Google account on your phone.

  2. 2

    Accept the invite

    Open the test link on that account and tap to become a tester.

  3. 3

    Install from Play

    The app then shows in Google Play. Install it, and it updates itself.

Attnom Prism, direct download

Download Attnom Prism 5.6.0.

This build, 5.6.0, predates the Attnom Prism name. It installs as "Attnom", and it is the same app.

Kotlin and Jetpack Compose, signed for com.attnom.world, built for Android API 26+ and verified against target API 36. Chrome is not required.

The Google Play test may carry a newer build. The APK and Play are separate channels, and an app updates from the one it came from.
Download APK · 66.4 MBInstallation guide
Version
5.6.0 (11)
Android
API 26+ · target 36
Screens
Phone · tablet · foldable · multi-window
Release
2026-09-13
APK SHA-256
c0778b8ba79c763261690c11b10dbf93add555fc152e7897d36cf255ccca795d

Direct download

Installing the APK

For Attnom Prism only. The APK and the Google Play build are separate update channels, so keep to the one you started with.

  1. 1

    Download

    Use the APK button above and keep the file name as it is.

  2. 2

    Allow this source

    Android may ask you to allow installs from your browser for this one file.

  3. 3

    Check and open

    Compare the SHA-256 if you want to, install, then open Attnom from your apps.

No phone to hand? Every division also works in the browser. See all five.