Kill Bill
8.3#1 in subscription billing softwareFrom $9,999 a monthFree planWebAPILinuxmacOS
VisitKill Bill vs UniBee
What both publish
| Fact | Kill Bill | UniBee |
|---|---|---|
| Deployment | The maker provides Docker and Tomcat installation options and says Kill Bill can run on Windows, Mac, or Linux computers, or on a Linux cloud server. | Customers can use a fully managed cloud deployment or self-host the open-source billing engine; the Advanced plan also offers on-prem deployment. |
| Integrations | The maker lists Stripe, Adyen, PayPal, Braintree, GoCardless, Coinbase, Avalara, and Vertex among its integrations. | The site lists more than 25 integrations, including Mixpanel, MailChimp, HubSpot, Twilio, Xero, Stripe, QuickBooks, PayPal and Zapier. |
| Intended users | The maker describes Kill Bill as serving online businesses, teams needing customization, startups, and growth-stage companies. | The subscription management page describes UniBee as built for international subscription businesses and names mid-market SaaS and AI companies through established enterprises as users. |
| Invoicing | Invoices are generated as billing events occur or on billing dates and support credits, adjustments, drafts and dry runs. | The system generates invoices automatically, supports custom templates and taxes, and can email or produce PDF invoices. |
| License | The core Kill Bill project is released under the Apache 2.0 license. | The standalone UniBee deployment, API and portals are licensed under GNU AGPLv3. |
| Payments | A common payment API routes transactions through gateway plugins and supports refunds and chargebacks. | UniBee says it supports multiple payment gateways, including Stripe and PayPal, with payment routing and fallback options. |
| Product | Kill Bill is an open-source, programmable billing platform with APIs for pricing models, subscriptions, invoices, and payment gateway integrations. | UniBee is an open-source, gateway-agnostic subscription billing platform with a free self-hosted edition and a managed cloud option. |
| Public API | Kill Bill exposes REST and JSON over HTTP under /1.0/kb/ for tenants, catalogs, accounts, subscriptions, usage, invoices, payments, tags, custom fields and audit logs. | The API uses authenticated REST endpoints with Bearer API keys and separate production and sandbox hosts. |
| Rating on Capterra | 4.7 out of 5 from 17 reviews | 5.0 out of 5 from 3 reviews |
| Rating on G2 | 4.5 out of 5 from 2 reviews | 5 out of 5 from 6 reviews |
| Rating on GetApp | 4.7 out of 5 from 17 reviews | 5.0 out of 5 from 3 reviews |
| SDKs | Client libraries are provided for Java, Ruby, Python, Go, PHP and JavaScript; additional community libraries include .NET. | Official public clients are available for Node.js/TypeScript, Go, Java, PHP, Python and Ruby. |
Kill Bill plans
- Kill Bill open sourceFree
- Self-Hosted Open SourceFree
- Aviate$9,999 a month
- AWS Marketplace—
- Hosted Platform (ChaChing)Priced on request
UniBee plans
- Open-sourceFree
- Starter$99 a month
- Business$399 a month
- AdvancedPriced on request
Pick Kill Bill if…
Kill Bill may suit online businesses and teams that need customizable subscription or usage-based billing. It is also described for startups and growth-stage companies, particularly those prepared to operate a self-hosted deployment.
Pick UniBee if…
UniBee may suit international subscription businesses, including mid-market SaaS and AI companies, that need subscription or metered billing. It offers a self-hosted route as well as managed cloud deployment.