True for everybody but Tesla. If you have a Tesla you install the app once to enter your credit card and then you can delete the app if you wish. All you need to recharge is the ability to drive the car (which doesn't require the app).
Not true for Electrify America and many other chargers.
Plug and charge is supported on many vehicles, and you can skip the app entirely and just pay by card.
Why do they force you to install the app just to enter a credit card? Sounds like something a website could do just fine.
But, it's not. All EV's in Europe I've driven had a simple plastic charging card, no apps required.