Kill Bill — #5 Alternative to Stripe Billing / Chargebee
Battle-tested Apache-2.0 enterprise subscription billing and payment platform
Originally developed at Ning and used by global telcos and fintechs, Kill Bill handles complex proration, catalog versioning, multi-currency dunning, and real-time double-entry sub-ledgers.
License: Apache-2.0 · Pricing: Free & Open Source · Compare all Stripe Billing / Chargebee alternatives · Official Website