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

Portal - Financial Aid Award Letter, - Messages and Calendar, - Grades.

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

Oopy - Start your subscription business with Notion and Stripe

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.

JotForm Approvals - After collecting responses through your online forms, create custom automated approval flows, make your team members part of the approval process. Try now for free!