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

VoPay - VoPay’s Fintech-as-a-Service platform allows any company to embed financial services and payment capabilities into their existing applications, products or services through a single and scalable API.

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

PayPal - PayPal is the faster, safer way to pay online without sharing financial details, send and receive money or accept credit and debit cards as a seller

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

Paytm Wallet - Pay with Paytm Wallet on GROUPON.com and get a new offer each time!