SamCart

A storefront whose card rate falls by plan

Shopify is a full storefront with its own card processing, rather than a checkout page that sits beside a course platform or storefront someone else already runs.

A store that bolts onto a site you already have

Ecwid bolts a full store onto a site that already exists, rather than SamCart's single-purpose checkout page sitting beside whatever already hosts the product.

Merchant of record for digital products

Paddle acts as the merchant of record and handles the tax filing that comes with that, a different problem than testing order bumps and upsells on a checkout page.

Sell digital products with almost no setup

Gumroad needs almost no setup and costs nothing to start, a simpler bet for someone not yet ready to run tests on bumps and upsells.

Checkout funnels with upsells and order bumps

Funnelish builds the same order-bump-and-upsell checkout funnel as a standalone product, without SamCart's shift toward including course hosting on the entry plan.