I misspoke I just mean the implementation is significantly different than noncustodial Like at some point when you’re pouring milk into coffee it stops being coffee with milk and becomes like a flat white or whatever.

But it is not free though. Their fee structure is quite a thing. You just pay as a % of your transfer. Plus privacy is pretty much gone.

You do pay a few sats but it's not like you're breaking the bank paying 3 sats on a zap. How is it not private?

No it's not. #Spark is confiscateable and has no unilateral exit.