FOSSBilling vs Pabbly Subscriptions
FOSSBilling
fossbilling.orgPabbly Subscriptions
pabbly.comSide by side
| Figure | FOSSBilling | Pabbly Subscriptions |
|---|---|---|
| Price from | Free | $14/mo |
| Free plan | Yes | Yes |
| Free trial | — | Yes |
| Open source | Yes | — |
| Web | Yes | Yes |
| Linux | Yes | — |
| API | Yes | Yes |
| Self-hosted | Yes | — |
| Plans published | 2 | 3 |
| Spec score · Subscription Billing Software | 8.6 (#12) | 8.6 (#13) |
| API | FOSSBilling provides a REST API with admin, authenticated-client, and public guest endpoints. | The public developer portal documents a Subscription Billing Payments REST API with 95 v1 endpoints at payments.pabbly.com/api/v1. |
| Security | Documented protections include HTTPS enforcement, session fingerprinting, CSRF protection, rate limiting, IP blocking, CAPTCHA, and activity logs. | Pabbly states SOC 2 Type 2 compliance, ISO 27001:2022 certification, two-factor authentication, penetration testing and a secure development lifecycle. |
| What it does | FOSSBilling is a billing and client-management system for hosting providers and digital-service businesses. | Pabbly Subscriptions handles one-time and recurring online payments, subscription administration, invoicing and customer management without requiring a shopping cart or coding. |
Plans
In their own words
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.
Pabbly Subscriptions
Pabbly Subscriptions has no write-up on Specifiction yet; its figures are above.