What is Kill Bill?
Open-source billing infrastructure proven at scale over 15+ years, supporting subscriptions, usage-based billing, and custom pricing models. Deploy in your infrastructure or use ChaChing's managed platform.
Kill Bill pricing
We don't have Kill Bill's full plan breakdown yet (its pricing page resisted automated reading). Here's what we could confirm. Always check live pricing for exact numbers.
Open source (free to self-host). ChaChing managed platform available (contact for pricing). Fixed pricing model, not percentage-based.
What Kill Bill does
The capabilities that matter for billing & invoicing software, normalised so it lines up with every alternative. “-” means we haven't confirmed it, not that it's missing.
- Subscription billing
- ✓
- Usage metering
- Real-time
- Pricing models
- Flat rate, tiered, volume, staircase, per-unit, custom logic
- Invoicing & AR
- ✓
- Catalog management
- ✓
- Merchant of record
- -
- Revenue recognition
- -
- Tax handling
- Integration
- Dunning
- Basic retry
- GL / ERP sync
- -
- API-first / developer-first
- ✓
- Self-hostable
- ✓
- Revenue analytics
- ✓
Platform & deployment
Independently observed- Web
- Cloud / SaaS
- Self-hosted
Integrations (5)
Independently observed- Avalara AvaTax
- Forte
- ChaChing
- Numerio
- Wovenware
Kill Bill alternatives
Other billing & invoicing software we track, ranked by the same independent score.
- Stripe Billinglow · 30%
- MetronomeInfrastructure for Modern Monetizationlow · 35%
- MaxioPower your AI business with the billing, rev rec, and reporting engine that's as smart and scalable as your next breakthrough.low · 46%
- StiggThe Usage Runtime for AI Productslow · 45%
- FastSpringGlobal Payments, Subscriptions, & Tax Compliancelow · 22%
- Invoice Ninjalow · 36%
The Vioscale score: one lens on the evidence
Not user reviews and not a paid placement: a confidence-weighted blend of the independent signals below (adoption, activity, security posture, and more), which you can sort and re-weight yourself. Vendors can correct their listing but can never move their rank, and stars are weighted low as a vanity metric. It is one way to read the evidence for Kill Bill, not the verdict.
| Signal | Score | Weight | Contribution | Evidence |
|---|---|---|---|---|
| Capabilities | 81 | 0.12 | 9.5 | ✓ |
| Github Activity | 47 | 0.10 | 5.0 | ✓ |
| Price Level | 100 | 0.05 | 4.7 | ✓ |
| Release Cadence | 44 | 0.06 | 2.5 | ✓ |
| Github Stars | 71 | 0.03 | 2.1 | ✓ |
| Integrations | 22 | 0.08 | 1.8 | ✓ |
| Pricing Transparency | 25 | 0.07 | 1.8 | ✓ |
| Reliability | 0 | 0.09 | 0.0 | - |
| Security Posture | 0 | 0.17 | 0.0 | - |
| Package Downloads | 0 | 0.15 | 0.0 | - |
| Stackoverflow Activity | 0 | 0.07 | 0.0 | - |
Computed . Re-weight it by intent, or see the full method.
All data & sourcesshow ↓
Every value we hold, with its source, retrieval date, and confidence. This is the evidence behind the score: don't trust it, verify it.
Activity
| Attribute | Value | Evidence |
|---|---|---|
| Commits last 30d | 31 | mediumsource · 2026-08-01 · 65% |
Adoption
| Attribute | Value | Evidence |
|---|---|---|
| Github stars | 5,644 | highsource · 2026-08-01 · 90% |
Features
| Attribute | Value | Evidence |
|---|---|---|
| Capabilities | {"dunning":"basic_retry","analytics":true,"api_first":true,"invoicing":true,"tax_handling":"integration","self_hostable":true,"pricing_models":"Flat rate, tiered, volume, staircase, per-unit, custom logic","usage_metering":"real_time","catalog_management":true,"subscription_billing":true} | mediumsource · 2026-08-05 · 60% |
Integrations
| Attribute | Value | Evidence |
|---|---|---|
| Count | 5 | mediumsource · 2026-08-05 · 60% |
Language
| Attribute | Value | Evidence |
|---|---|---|
| Primary | Java | highsource · 2026-08-01 · 90% |
License
| Attribute | Value | Evidence |
|---|---|---|
| Spdx | Apache-2.0 | highsource · 2026-08-01 · 95% |
Pricing
Release
| Attribute | Value | Evidence |
|---|---|---|
| Cadence days | 101 | mediumsource · 2026-08-01 · 70% |