Rebilly VS spreedly

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

Paystack - Paystack offers payment solutions for Nigerian businesses.

Stripe Billing - A set of tools for billing and subscriptions

Braintree - An all-in-one solution to accept, process, and split payments in your mobile app or online - from small business to large enterprise.

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.

Alipay - Alipay.com is a third-party online payment platform with no transaction fees.