Go to the Mobile Performance Meter app in the Google Play Store (Mobile Performance Meter )
and Scroll down until you see the section titled “Join the beta” (See Images)
You should see a message saying You’re a beta tester At the top of the page, tap the “Install” button to install the latest beta version
Important: Process of registration might take 15 min
Tap the “Join” button, then tap “Join” to confirm