Plasso.com - Payments made simple. Sell subscriptions & products online.
Trim - Manage and cancel your paid subscriptions
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.
Bobby - Keep track of your subscriptions
Chargebee - Chargebee lets you manage subscriptions and payments at scale, handle custom recurring billing scenarios, reduce subscription churn and simplify accounting.
Recurpay - Recurpay is a subscription SaaS app for businesses that automates recurring billing.