Braintree - An all-in-one solution to accept, process, and split payments in your mobile app or online - from small business to large enterprise.
Bobby - Keep track of your subscriptions
PayPal - PayPal is the faster, safer way to pay online without sharing financial details, send and receive money or accept credit and debit cards as a seller
Trim - Manage and cancel your paid subscriptions
ProPay - ProPay is a multiple payment making service provider that lets its users to make payment to anyone in any part of the world.
TrackMySubs - Subscription tracking and management solution