[Aulig]

I use Paddle on https://webtoapp.design and went through their and my TOS with a german lawyer. Basically they're only responsible for payments & customer support (however most customers come to me directly or get directed to me, as Paddle can only really resolve billing issues).

Paddle checked my site & product 3 times to make sure it complies with their requirements (an important aspect in my case was that my app creation process is automatic and not done by hand). I always got in touch with a human quickly, both during the account setup and later when I needed help (through chat or [e-mail]). In fact I'd say it's probably the best support experience I've ever had.

Regarding your sign-up questions: - Back when I signed up there were no such options but now I'm in "Standard Digital Goods" which seems to be the catch-all for everything that doesnt fit into one of the more specific categories. - I had integrated Stripe and Paypal (never again) already, so I didn't have that problem. You could use a "Contact Us" placeholder to manually process payments I guess. If you immediately apply to Paddle then, you shouldn't have to keep that up for long anyways.