The app is in closed testing on Google Play: only registered accounts can install it. Signing up takes 3 steps and about two minutes.
Use the button below to open the testers' Google Group. On that page, click "Join group": this is what grants you access to the test. You can choose to receive no emails from the group.
Open the testers group (opens in a new window)Once you are a group member, use the button below to open the testing page on Google Play. On that page, click "Become a tester" to confirm your participation.
Open the testing page on Google Play (opens in a new window)On the same page, follow the "Download it on Google Play" link and install the app. Updates will then arrive automatically through the Play Store.