Buy Me A Coffee - A free, fast and friendly way to accept donations 💰

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

Effective Altruism Funds - Do more good with an evidence-based charity portfolio 💡 📈

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

Ko-fi - Ko-fi offers a friendly way for content creators to get paid for their work.

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.