Cohost Scanner

This installs the door-scanning app straight from a file instead of the Play Store. It takes about a minute — follow the steps in order on the phone you'll be scanning with.

Install in 5 steps

1. 1

   Open the downloaded file

   Tap the download notification, or find app-release.apk in your Downloads app.

2. 2

   Allow installs from this source

   Android will block it the first time and offer a Settings button. Tap it, then turn on “Allow from this source” for the app you opened the file with (usually Chrome or Files).

3. 3

   Go back and tap Install

   Return to the install screen — it should still be open — and tap Install.

4. 4

   If Play Protect steps in, install anyway

   You may see a warning that this app is unrecognized. Tap More details → Install anyway.

   Why does this show up? Play Protect flags anything installed outside the Play Store, whether or not it's safe. We're sideloading because the app was removed from the Store — the build itself is signed and unchanged.

5. 5

   Open the app and sign in

   Launch Cohost Scanner and log in with the scanning ID and PIN your event organizer gave you.

Cohost Scanner · guestwho-7e1f2 · distributed outside Google Play