Recurly - Subscription billing and recurring billing management. Recurly offers enterprise-class subscription billing for thousands of companies worldwide.

Vibeoo - Experience Quality Audio Content On Demand

Pabbly Subscriptions - Pabbly Subscription is a recurring billing & subscription management software.

ShortKast - Talk about everything.

Chargebee - Chargebee lets you manage subscriptions and payments at scale, handle custom recurring billing scenarios, reduce subscription churn and simplify accounting.

Praditus - Praditus is a self-discovery platform that helps individuals identify their talents and areas of development through a series of tests.