Google Payment API - Enable an easy-to-use checkout experience for customers
BlockSurvey - Privacy-focused surveys, polls & forms
Giftbit Payment API - Stripe for gift cards
Refiner - Customer Feedback Surveys For SaaS
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.
Surveys in Slack by Polly - The world's first fully immersive Slack-based survey product