Follow the steps below — it takes about 60 seconds.
No Google Play needed.
Pull down your notification shade from the top of your screen. You'll see triptally.apk listed under your downloads. Tap it to open.
Android will ask if you want to allow your browser to install apps. Tap Settings, then turn on Allow from this source, then go back and tap Install.
Android will show you a standard install screen with the app icon and permissions. Tap Install at the bottom. The app will install in a few seconds.
When you start your first trip, TripTally will ask for location access. Choose Allow while using the app. GPS will keep tracking in the background via a foreground notification.
Tap Open on the install screen or find TripTally in your app drawer. Grant the overlay permission to enable the floating bubble over Uber and Lyft. Connect your car's Bluetooth for auto-start, and you're all set.