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.
Varo - Varo is an all-in-one mobile banking solution that helps you to manage your financial needs.
UniPayGateway - Ultimate payment gateway software for merchants, ISOs and PSPs. Full range of payment gateway capabilities. Functionality rich open source payment system.
Brigit - Brigit is a fast, smart, and easy financial app that monitors your account in the background and sends you cash every time your balance run lows.
Zuora - Zuora creates cloud-based software on a subscription basis that enables any company in any industry to successfully launch, manage, and transform into a subscription business.
Earnin - Earnin is a superb tool developed and published by Activehours Inc.