Become a Sentinel

Enter the Gmail you use on Google Play. We will send your invite right away.

You are in

Two quick steps on your Android phone, signed in with the same Google account.

1. 1

   Join the tester group

   JOIN GROUP
2. 2

   Accept the invite and install

   ACCEPT & INSTALL

If Google Play says the app is not available yet, wait a few minutes after joining the group and try again. A copy of these steps is in your inbox.