Kill BillManage recurring subscriptions, invoices and payment processing integrations.
100% free open-source (Apache-2.0). Unlimited invoices, accounts, and transactions.
Developer tools
Lago
Free softwareOpen sourceBrowser
Measure product usage and generate bills for subscriptions and usage-based plans.
What you can use it for
Measure product usage and generate bills for subscriptions and usage-based plans.
- Real-time event metering capable of ingesting millions of usage metrics without performance drops.
- Supports hybrid pricing models (base subscription + prepaid units + pay-as-you-go overages).
- Integrates seamlessly with payment gateways including Stripe, Adyen, and GoCardless.
Workflow coverage and comparison notes
Meter usage-based API calls, automate recurring B2B subscriptions and manage billing events with open-source Lago instead of Maxio / Chargify enterprise contracts.
Before you switch
You manage your own merchant processing accounts and compliance; self-hosting requires PostgreSQL and Redis.
Alternatives to these paid apps
Each comparison covers the workflow described above, rather than every paid feature.
More for the same workflow
See alternatives →Kill Bill