For a rental, no. And no account. They gave me a keycard. Not optimum, as some functionality is not available. Supercharging was still seamless though, as the car belongs to Hertz. Back in, point cable at the door, press button, door opens, plug in, grab a snack or relax in the car. Charges go right to Hertz, who add it to your bill. And unlike tolls, there's no lag and no "passthrough" charge from Hertz on the electricity fee.
Downside of only having the keycard though, with the app you can set the car to precondition the cabin to your preferred temp at any time from anywhere. Given I was in Jacksonville in June, being able to tell the car I wanted it 72 inside 10 minutes ahead of leaving would have been nice. With the app, the car senses your approach and unlocks it it for you, and locks up when you walk away. The card, you need to hold against the pillar for the NFC chip to register. And place it in the right spot inside the car.