Required? No. But it’s really the preferred way to go. Or RFI cards. The CC generally suck and are dead/broken most of the time. You will end up collecting apps. Every idiot company with a charger has their own app. Many require a preload which sucks when you want to use it one time at a place you will never be at again. Here’s looking at you Blink. Some of this was put in place years ago and it shows.
Tesla doesn’t “require” you to use their app but it’s a long ways better than just about anyone else’s app that can use their superchargers. GMs app sucks balls. It’s so bad. I did use it once to charge and never again. The tesla app is pretty painless to set up and use. Yes you set up payment ahead of time. I use my Apple Card and get the rebate. When you start the charge it throws a temp 20’dollar charge on the card and when you finish, it clears that and only the actual amount is charged. You start and stop the charge from the app which is handy given how no user friendly the bolt charging screens are
you also get a running tally of the charge in Kw and in dollars.