Billsby vs FOSSBilling
Billsby
billsby.comFOSSBilling
fossbilling.orgSide by side
| Figure | Billsby | FOSSBilling |
|---|---|---|
| Price from | $45/mo | Free |
| Free plan | Yes | Yes |
| Free trial | Yes | — |
| Open source | — | Yes |
| Web | Yes | Yes |
| Linux | — | Yes |
| API | Yes | Yes |
| Self-hosted | — | Yes |
| Plans published | 8 | 2 |
| Spec score · Subscription Billing Software | 9.0 (#4) | 8.6 (#12) |
| API | Billsby exposes a REST API under public.billsby.com and authenticates requests with an API key. | FOSSBilling provides a REST API with admin, authenticated-client, and public guest endpoints. |
| SDKs | No first-party Billsby SDK is identified in the public documentation; third-party Make, Zapier and Pipedream connectors are documented. | The API documentation provides example requests for cURL, Python, and Node.js rather than publishing a separate official SDK package. |
| Security | Billsby states that it complies with EU GDPR, UK GDPR, and applicable CCPA obligations, and that payment card data is tokenized in the Billsby Vault powered by Spreedly. | Documented protections include HTTPS enforcement, session fingerprinting, CSRF protection, rate limiting, IP blocking, CAPTCHA, and activity logs. |
| Self-hosting | The public materials describe Billsby as a hosted web service and do not document self-hosted deployment. | FOSSBilling is self-hosted, so the operator keeps the data and controls infrastructure, backups, and security policies. |
| Support | The pricing page lists API documentation, email support, and live chat support hours of 04:00–21:00 EST. | The project points users to its documentation, community Discord, and email address for assistance. |
| What it does | Billsby is a cloud subscription-billing platform for recurring payments, invoicing and subscription lifecycle management. | FOSSBilling is a billing and client-management system for hosting providers and digital-service businesses. |
Plans
Billsby
- FreeFree
- Core$45 a month
- Core$45 a month
- Pro$135 a month
- Pro$135 a month
- CustomPriced on request
- CustomPriced on request
- FreePrice not published
In their own words
Billsby
Billsby manages subscriptions, recurring billing, invoicing, and customer lifecycle tasks. It groups subscriptions into products, plans, and cycles that define what is offered, its pricing, and billing frequency. Pricing options include flat fee, per unit, volume, tiered, and ranged models. Usage billing supports metered allowances, real-time API updates, and manual adjustments. Checkout and account-management modals can be added to a website with as little as two lines of code. Failed or declined payments enter dunning flows intended to address payment issues and recover customers. Billsby works with payment gateways but is not itself a gateway. Core costs $45 a month, plus 0.4% on revenue exceeding $15,000/mo; Pro costs $135 a month, plus 0.5% on revenue exceeding $30,000/mo. Billsby says it supports usage-based billing, tax automation, multi-currency billing, and a customer billing portal. It is available via API and web, and is headquartered in London, United Kingdom.
FOSSBilling
FOSSBilling is free, open-source billing and client-management software for hosting and other online service businesses. It can issue invoices automatically, send payment reminders, handle recurring or one-time pricing, support multiple currencies and apply promo codes. Hosting products can create and manage accounts through cPanel/WHM, DirectAdmin, HestiaCP, CWP and Plesk. Domain functions cover registration, renewal, transfers and WHOIS checks through registrar integrations, though domain prices are entered manually rather than retrieved live. A REST API provides admin, authenticated-client and public guest endpoints. Documented protections include HTTPS enforcement, session fingerprinting, CSRF protection, rate limiting, IP blocking, CAPTCHA and activity logs. It is self-hosted, requiring PHP 8.3, 8.4 or 8.5 and a MySQL-compatible database, with Apache, LiteSpeed/OpenLiteSpeed or NGINX. The project is beta, under active development, and notes rough edges and limited support.