Payhip doesn’t restrict certain features to certain plans. All plans come with the same features, so you can opt to pay a higher monthly fee in exchange for a lower (or 0%) transaction fee. I like this way of doing things! (Note that transaction processor fees are separate)

Payhip might be the closest true alternative to Gumroad at the moment, though they do lack a marketplace for discovery.

VAT and taxes:

Sales Tax - Payhip

Taxes for Digital Products

You can intelligently charge sales tax for U.S. sales, but Payhip does not remit sales tax to state governments.

Email marketing:

Email Marketing - Payhip

Memberships:

Sell Memberships - Payhip

Payment frequency:

How Do I Get Paid?

Payhip auto-transfers funds to your Stripe/PayPal accounts automatically.

Upsells/Cross-sells:

Cross Selling

Zapier:

Zapier

Courses:

Add Course Products

Checkout buttons in WordPress:

Add Payhip to WordPress (Gutenberg Editor)

PayHip supports webhooks, though it doesn’t have specific API methods for polling.

Webhooks

Affiliates:

Affiliates

Payhip does not pay your affiliates automatically, so you’ll have to use your own methods (PayPal Mass Pay is likely the easiest)