Lazy Jar VS Chargify

Next! Fitness - A.I. powered gym

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

100 Hours Project - A simple offline way to keep yourself accountable

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

Boost - Boost is an e-commerce for mobile, where users can generate hashtags for products and instantly sell and buyers can tweet to make a purchase

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.