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

Stocard - All loyalty cards on your smartphone!

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

Key Ring Reward Cards - Tired of all the loyalty cards dangling from your keys or stuffed in your wallet?

Chargify - Chargify is the best online billing software for all of your Recurring Billing needs. Learn more about simplifying your Subscription Billing today.

CardStar - Leave those bulky plastic “reward cards” and “club cards” at home!