compare
Flexprice vs Kill Bill
The same facts for both, read from GitHub every night, and the relation a person reviewed.
| Fact | Flexprice | Kill Bill |
|---|---|---|
| Language | Go | Java |
| Licence | AGPL-3.0 | Apache-2.0 |
| Stars | 6.9k | 5.8k |
| Latest | v2.1.34 | killbill-0.24.22 |
| Last push | 2026-10-06 | 2026-10-05 |
| Release cadence | about 7 days between releases | about 38 days between releases |
| Active contributors | 10+ commit authors on the default branch in the last 90 days | 6 commit authors on the default branch in the last 90 days |
| Flags | none | none |
How they relate
Both replace Chargebee. Alternatives to Chargebee →
PartialFlexpriceFocused on usage-based pricing and credits rather than subscription management alone.
Full replacementKill BillSubscription catalog, invoicing and dunning on your own server.
Both replace Stripe Billing. Alternatives to Stripe Billing →
Full replacementFlexpriceUsage metering, credits, plans and invoices, with some features in an enterprise directory.
Full replacementKill BillSubscriptions, usage billing and invoicing, with payment gateways added as plugins.
Flexprice
- v2.1.342026-10-06feat(subscription): Line item modification support
- v2.1.332026-09-25
- v2.1.322026-09-22feat(addons): Settlement changes for prorated net invoice
- v2.1.312026-09-18fix(e2e): Backdated usage events probe fix and plan changed event svix registeration
- v2.1.302026-09-09fix(e2eprobe): opt into multi-cadence via include_price_ids
Kill Bill
- killbill-0.24.222026-09-29N/A
- killbill-0.24.212026-08-12N/A
- killbill-0.24.202026-08-07N/A
- killbill-0.24.192026-07-09N/A
- killbill-0.24.182026-05-14Other notes:
Flexprice
✓ signed The latest release, v2.1.34, carries a signature GitHub verified.
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Kill Bill
unsigned The latest release, killbill-0.24.22, carries no signature GitHub could verify.
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