Kakao Pay vs Kill Bill
Kakao Pay
kakaopay.comKill Bill
killbill.ioSide by side
| Figure | Kakao Pay | Kill Bill |
|---|---|---|
| Price from | Free | $9,999/mo |
| Free plan | Yes | Yes |
| Free trial | — | Yes |
| Open source | — | Yes |
| Web | — | Yes |
| Windows | — | Yes |
| macOS | — | Yes |
| Linux | — | Yes |
| iOS | Yes | — |
| Android | Yes | — |
| API | Yes | Yes |
| Self-hosted | — | Yes |
| Plans published | 1 | 5 |
| Spec score · Payment Processing Software | 8.2 (#20) | 9.2 (#4) |
| Payments | Kakao Pay says users can pay online and offline at more than 800,000 locations, using biometric authentication online and barcodes in person. | A common payment API routes transactions through gateway plugins and supports refunds and chargebacks. |
| Security | Kakao Pay states it holds ISMS-P and ISO/IEC 27001 certifications for service operations, with the listed ISMS-P validity running from June 1, 2026 to May 31, 2029. | The overview describes encryption at rest and in transit, TLS communications, AES-256 stored-data encryption, audit logs, role-based access controls, and multi-tenant isolation. |
| Support | The app listing says KakaoTalk chatbot support is available 24/7, agents are available weekdays 9:00 a.m.–5:30 p.m., and the customer center is open weekdays 9:00 a.m.–6:00 p.m. | The self-hosted open-source option includes community support, while paid support tiers are separately purchased for customer-managed deployments. |
| What it does | Kakao Pay offers payments, money transfers, points, asset management, insurance, loans, and investment services. | Kill Bill is an open-source platform for subscription billing, usage billing, invoicing and payments. |
Plans
Kill Bill
- Kill Bill open sourceFree
- Self-Hosted Open SourceFree
- Aviate$9,999 a month
- AWS MarketplacePrice not published
- Hosted Platform (ChaChing)Priced on request
In their own words
Kill Bill
Kill Bill is an open-source, programmable billing platform with APIs for pricing models, subscriptions, invoices, and payment gateway integrations. It supports usage-based billing, and plugins connect its payment platform to gateways, issuing banks, and fraud tools. The web-based Kaui back-office interface lets teams configure price books and manage subscriptions and payments. Listed integrations include Stripe, Adyen, PayPal, Braintree, GoCardless, Coinbase, Avalara, and Vertex. Installation options include Docker and Tomcat; Kill Bill can run on Windows, Mac, or Linux computers, or on a Linux cloud server. Described security controls include encryption at rest and in transit, TLS communications, AES-256 stored-data encryption, audit logs, role-based access, and multi-tenant isolation. The self-hosted open-source option includes community support, but customers operate and upgrade it; paid support tiers are purchased separately for customer-managed deployments. The AWS Marketplace option is listed at ~$40/mo, plus AWS infrastructure costs. Hosted-platform pricing follows a separate commercial model. The maker describes the product as serving online businesses, customization-focused teams, startups, and growth-stage companies.