Paddle and Fastspring are worth looking at if you want them to deal with EU VAT for you. Neither does Bitcoin as far as I know. Also, you'll generally have to

Paddle and Fastspring are worth looking at if you want them to deal with EU VAT for you. Neither does Bitcoin as far as I know. Also, you'll generally have to come up with and integrate your own solution for user management and how your users are linked to subscriptions. Both services above for example assume you have an existing user database.