Mine is based on a vestel evc04, and by default has a cloud option with some company saying "we'll do it, move your energy through us" etc.

You can connect it to any evcc endpoint like a local homeassistant, or simply leave it on all the time.

I'm not happy with guaranteeing high availability on my HA install yet (it's not as simple as my pihole which is just a simple vrrp address over the two hosts) though so I just leave it in "always on" mode, and use the timer on the car to come on at 2310 (offpeak starts at 2300 on my tarrif).

I'd be surprised if a charger is genuinely only available via an cloud service, but from asking my neighbours if it doesn't have "an app" they wouldn't buy it.

I'd rather have an API I could poll/poke for the charger rather than set the charger to connect to me, but alas it doesn't have one.