Android · Free

Download Counting Edge for Android

Counting Edge: Card Counter is a free card counting trainer for Android. It isn't on Google Play: you install the APK straight from the app's GitHub release. All 7 counting systems, no ads, no account, open source.

Counting Edge: Card Counter v1.0.0 · 1.3 MB · Android 7.0 or newer

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APK SHA-256:

Release notes · All versions · Source code

FreeAll 7 systems, no ads, no purchases
No permissionsNot even internet access
No accountEverything stays on your phone
Open sourceApache 2.0, on GitHub

How to install the APK

Android installs apps from outside Google Play once you allow the app you downloaded with. The exact wording differs a little between phone makers.

Download on your phone

Open this page on your Android phone and tap Download APK. On a computer, download it and copy the file to your phone, or open this page on the phone instead.

Open the file

Tap the finished download in the notification shade, or open Files → Downloads and tap the APK.

Allow installs from this source

The first time, Android says your browser isn't allowed to install unknown apps. Tap Settings, turn on Allow from this source, then go back. On Android 7 the switch is Unknown sources under Settings → Security. You can turn it off again afterwards.

Install and open

Tap Install, then Open. If Google Play Protect warns that it doesn't recognise the app, tap More details, then Install anyway.

Updating

Download the newer APK and install it over the old one. Your settings and session data are kept. Android only accepts an update signed with the same key as the app you have, so an update that installs cleanly came from the same publisher.

Verify the download

Optional, for the careful. Each release lists the APK's SHA-256 checksum in its notes; it's shown above the links once this page has loaded it. Check the file on a computer, changing the file name to match your download:

Commands to print an APK's SHA-256 checksum
System	Command
macOS / Linux	`shasum -a 256 CountingEdge-1.0.0.apk`
Windows	`certutil -hashfile CountingEdge-1.0.0.apk SHA256`

The APK is signed with a certificate whose SHA-256 fingerprint is:

69:B1:04:CB:37:BC:E3:1E:B6:11:71:08:D3:7E:A4:2F:57:3F:1C:9B:44:45:3A:23:2E:25:9D:69:91:83:39:8E

apksigner verify --print-certs from the Android SDK prints the same value for a genuine APK.

Not ready to install?

Try the free card counting practice trainer in your browser first, or read how to count cards. Problems installing? See Support.

Frequently asked questions

Is Counting Edge free?

Yes. All 7 counting systems and every feature are available on install, with no ads, no account, no in-app purchases and no subscription. The app is open source under the Apache 2.0 license.

Is it safe to install an APK from outside Google Play?

Only install APKs from sources you trust. Counting Edge's source code is public on GitHub, the APK is published on its GitHub release with a SHA-256 checksum you can check, and the app asks for no permissions, not even internet access.

Is Counting Edge on Google Play or the App Store?

No. It is distributed as an APK from GitHub Releases and this site, and it runs on Android only. On an iPhone you can practice with the free browser trainer instead.

How do I update the app?

Download the newer APK and install it over the old one. Your settings and session data are kept. Android only accepts an update signed with the same key as the installed app.