how do i get a text counter on my google voice app?

[AC Question]

on my screen I want to ad a text counter so I can just look at phone.

 

[hallux]

You'll need a 3rd-party launcher such as Nova, which then has a plug-in called Tesla Unread. Even then, it might not work on the GV app.

If you have a Samsung, which already has a launcher (Touchwiz) that supports badges, it just may not work with that app, not all apps work with it.