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.
PayPal.Me - Request money using your own personalized URL.
MightySignal Top SDKs - Most used SDKs in top 200 free iOS apps. Learn what to use.
Bonsai - Bonsai is a one-stop business & finance management platform designed for creative and digital agencies. Streamline client management, track your team’s time, get paid faster and manage finances in one place.
bunq Apps - Create and market apps that work with bank accounts
Payzo - Accept credit cards with zero coding (for freelancers)