Measure product usage and generate bills for subscriptions and usage-based plans.
100% free open-source (AGPLv3 / Apache-2.0). Unlimited billable events and customers when self-hosted.

Developer tools
Manage recurring subscriptions, invoices and payment processing integrations.
Manage recurring subscriptions, invoices and payment processing integrations.
Deploy modular recurring billing and payment routing architecture on your own infrastructure with Kill Bill instead of Maxio.
Java-based backend requiring JVM memory allocation and relational database (MySQL/PostgreSQL) setup.
Each comparison covers the workflow described above, rather than every paid feature.