Recurly enables you to professionally automate your recurring billing. Save money and time with our complete, customizable subscription billing service....
PayPal is the faster, safer way to send money, make an online payment, receive money or set up a merchant account....
Chargify simplifies recurring billing for Web 2.0 and SaaS companies. Build innovative web applications without worrying how to bill your customers....
WePay makes it easy to securely collect money online....