Stripe - Online payment processing for internet businesses. Stripe is a suite of payment APIs that powers commerce for online businesses of all sizes. Use Stripe’s payment platform to accept and process payments online for easy-to-use commerce solutions.

AbTest.io - A free url shortener with A/B testing features

CartHero - Recover abandoned checkouts with SMS, discounts, and customer service

Anboto - Anboto provides web customer service and e-Commerce technology based on semantics and natural language processing.

Checkout Page - Sell on your site with customizable checkouts. Tailor-made one page checkouts to sell digital products & services without an ecommerce store.

GoodUI Evidence - People's A/B test results that show which UI ideas work best