BillingServ vs Kill Bill
BillingServ
billingserv.comKill Bill
killbill.ioSide by side
| Figure | BillingServ | Kill Bill |
|---|---|---|
| Price from | £4.17/mo | $9,999/mo |
| Free plan | — | Yes |
| Free trial | Yes | Yes |
| Open source | — | Yes |
| Web | Yes | Yes |
| Windows | Yes | Yes |
| macOS | Yes | Yes |
| Linux | — | Yes |
| iOS | Yes | — |
| Android | Yes | — |
| API | Yes | Yes |
| Self-hosted | — | Yes |
| Plans published | 8 | 5 |
| Spec score · Subscription Billing Software | 9.2 (#1) | 9.1 (#3) |
| Founded | 2014 | 2010 |
| Integrations | Listed connections cover Stripe, PayPal, Revolut, GoCardless, CoinGate, PayMongo, bKash, Safepay, Inxy.io, Worldpay, BluePay, Mollie, Flutterwave, fraud tools, domain providers, VPS systems and hosting panels. | The maker lists Stripe, Adyen, PayPal, Braintree, GoCardless, Coinbase, Avalara, and Vertex among its integrations. |
| Invoicing | It creates branded invoices, applies tax rules and currencies, and sends automated payment reminders. | Invoices are generated as billing events occur or on billing dates and support credits, adjustments, drafts and dry runs. |
| Limit: learning curve | One independent review mentions an initial learning curve before becoming comfortable with the product. | Reviewers repeatedly describe the product as complex with a steep learning curve, especially for non-trivial billing models. |
| Payments | The product accepts card, PayPal, direct-debit and cryptocurrency payments for subscriptions, hourly work, one-off jobs and digital products. | A common payment API routes transactions through gateway plugins and supports refunds and chargebacks. |
| Public API | API v2 is a bearer-token REST API for customers, packages, invoices, orders, tickets, usage and reports; API v1 is deprecated. | 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. |
| Rating on Capterra | 5.0 out of 5 from 4 reviews. | 4.7 out of 5 from 17 reviews |
| Rating on G2 | 0 out of 5 from 0 reviews. | 4.5 out of 5 from 2 reviews |
| Rating on GetApp | 5.0 out of 5 from 4 reviews. | 4.7 out of 5 from 17 reviews |
| Rating on Software Advice | 5.0 out of 5 from 4 reviews. | 4.7 out of 5 from 17 reviews |
| Reporting | Billing history and transaction patterns are turned into revenue, customer and payment performance reports. | The open-source analytics plugin supplies ready-made and custom reports viewable in Kaui. |
| Security | BillingServ states that it uses encrypted cloud infrastructure, encrypted databases and backups, access controls and hourly backups in multiple global locations. | 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. |
| System requirements | The white-label VPN apps use Flutter for iOS, Android, macOS and Windows, while the MCP server requires Node.js 20 or newer. | Docker deployment requires Docker Compose and at least 4 GiB of memory; Tomcat deployment uses JDK 11, Tomcat 9.0.x and MySQL, MariaDB or PostgreSQL. |
| What it does | BillingServ is a cloud platform for recurring billing, invoicing and payment collection aimed at SaaS, hosting, VPN and service businesses. | Kill Bill is an open-source platform for subscription billing, usage billing, invoicing and payments. |
Plans
BillingServ
- Basic£50 a year
- Starter£12 a month
- Professional£18 a month
- Business£28 a month
- Starter annual£9 a month
- Professional annual£16.25 a month
- Business annual£25.25 a month
- EnterprisePriced on request
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
BillingServ
BillingServ has no write-up on Specifiction yet; its figures are above.
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.