Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature may not be available in some browsers.
You can do this via Google Play?Yes, download the app file onto your PC, then connect the phone by USB, then transfer it to your phone
As long as you use your Google credentials on both devices, it should work fine. If not, apkmirror is a good option also
Yes, you can open the Play Store on the pc and download the app to the pc. When you use a USB cable, you can transfer to the Phone.
Yes, what Sherri said...

My bad. You can only download from the play store on your PC straight to your phone or listed devices. Both PC and phone must use your Google credentials.
adb devices
adb install net.bexton.android.device_id-1.0.1.apk

(Yuck)Thanks, bg260! Guess that's the ticket.