# FOSSBilling vs Quaderno

**Leader by Vioscale score:** Quaderno

| Attribute | FOSSBilling | Quaderno |
|---|---|---|
| **Vioscale score** | 39 (39% (low)) | 59.8 (39% (low)) |
| activity.commits_last_30d | 21 | - |
| adoption.github_stars | 16 | - |
| deployment.options | `{"self_hosted":true}` | `{"cloud":true}` |
| description.long | FOSSBilling is a free and open-source billing and client management platform designed for hosting businesses. It provides automated billing, hosting provisioning, domain management, support ticketing, and an extensible architecture. | Worldwide tax compliance platform that automates sales tax, VAT, and GST calculations, invoicing, and tax return filing for online businesses. |
| features.capabilities | `{"invoicing":true,"self_hostable":true,"subscription_billing":true}` | `{"gl_sync":true,"analytics":true,"api_first":true,"invoicing":true,"tax_handling":"native","pricing_model":"flat_subscription","self_hostable":false,"pricing_models":"Tiered subscription with transaction-based limits","usage_metering":"basic","subscription_billing":true,"eu_vat_cross_border_calculation":true,"us_sales_tax_address_validation":true,"digital_goods_software_tax_rules":true,"real_time_checkout_calculation_api":true,"automated_return_filing_and_payment":true,"economic_nexus_jurisdiction_tracking":true,"exemption_certificate_management_b2b":true}` |
| integrations.count | 4 | 9 |
| integrations.list | `[{"name":"cPanel"},{"name":"Plesk"},{"name":"DirectAdmin"},{"name":"HestiaCP"}]` | `[{"name":"Stripe"},{"name":"PayPal"},{"name":"GoCardless"},{"name":"Xero"},{"name":"Braintree"},{"name":"Hotmart"},{"name":"PEPPOL"},{"name":"TicketBAI"},{"name":"Facturae"},{"name":"Square"},{"name":"Amazon"},{"name":"WooCommerce"}]` |
| language.primary | Astro | - |
| license.spdx | AGPL-3.0 | - |
| market.availability | - | `{"hqCountry":"ES","primaryMarkets":[],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` |
| platform.support | `{"web":true}` | `{"web":true}` |
| pricing | `{"type":"open_source","freeTier":true,"sourceUrl":"https://fossbilling.org/","retrievedAt":"2026-08-13T20:47:11.610Z"}` | `{"type":"subscription","plans":[{"free":false,"name":"Hobby","summary":"$29/month","features":["International tax calculations","Nexus & threshold alerts","Automatic invoices","Quaderno Checkout","Five-star support","Multichannel tax reports","Onboarding assistance"],"commitment":"monthly","components":[{"kind":"fixed","amount":29,"period":"month","currency":"USD"}],"contactSales":false,"includedLimits":{"users":"1","integrations":"1","transactions":"25/month","jurisdictions":"1"}},{"free":false,"name":"Startup","summary":"$49/month","features":["International tax calculations","Nexus & threshold alerts","Unlimited users","Automatic invoices","Quaderno Checkout","Five-star support","Multichannel tax reports","Unlimited integrations","Onboarding assistance"],"commitment":"monthly","components":[{"kind":"fixed","amount":49,"period":"month","currency":"USD"}],"contactSales":false,"includedLimits":{"users":"Unlimited","integrations":"Unlimited","transactions":"250/month","jurisdictions":"Unlimited"}},{"free":false,"name":"Business","summary":"$99/month","features":["International tax calculations","Nexus & threshold alerts","Unlimited users","Automatic invoices","Quaderno Checkout","Five-star support","Multichannel tax reports","Unlimited integrations","Onboarding assistance"],"commitment":"monthly","components":[{"kind":"fixed","amount":99,"period":"month","currency":"USD"}],"contactSales":false,"includedLimits":{"users":"Unlimited","integrations":"Unlimited","transactions":"1,000/month","jurisdictions":"Unlimited"}},{"free":false,"name":"Growth","summary":"$149/month","features":["International tax calculations","Nexus & threshold alerts","Unlimited users","Automatic invoices","Quaderno Checkout","Five-star support","Multichannel tax reports","Unlimited integrations","Onboarding assistance"],"commitment":"monthly","components":[{"kind":"fixed","amount":149,"period":"month","currency":"USD"}],"contactSales":false,"includedLimits":{"users":"Unlimited","integrations":"Unlimited","transactions":"2,500/month","jurisdictions":"Unlimited"}},{"free":false,"name":"Enterprise","summary":"Contact for pricing","description":"For 2,500+ transactions per month","contactSales":true}],"summary":"From $29/month. 7-day free trial.","currency":"USD","freeTier":false,"sourceUrl":"https://quaderno.io/","retrievedAt":"2026-08-03T13:23:20.173Z","freeTrialDays":7,"startingPrice":{"amount":29,"period":"month","currency":"USD"},"billingPeriods":["month"]}` |
| pricing.free_tier | yes | no |
| pricing.model | open_source | commercial |
| pricing.price_level | free | mid |
| pricing.starting_price | - | `{"amount":29,"currency":"USD"}` |
| pricing.transparent | yes | yes |
| reliability.sla_pct | - | 99.99 |
| reliability.status_page | yes | - |
| security.disclosure_policy | - | yes |
| security.gdpr | - | yes |

## Capabilities (Billing & Invoicing Software)

| Capability | FOSSBilling | Quaderno |
|---|:--:|:--:|
| **Core** |  |  |
| Subscription billing | ✓ | ✓ |
| Usage metering | - | Basic |
| Pricing models | - | Tiered subscription with transaction-based limits |
| Invoicing & AR | ✓ | ✓ |
| Catalog management | - | - |
| **Commerce** |  |  |
| Merchant of record | - | - |
| **Finance** |  |  |
| Revenue recognition | - | - |
| Tax handling | - | Native |
| **Collections** |  |  |
| Dunning | - | - |
| **Integrations** |  |  |
| GL / ERP sync | - | ✓ |
| **Ecosystem** |  |  |
| API-first / developer-first | - | ✓ |
| **Deployment** |  |  |
| Self-hostable | ✓ | ✗ |
| **Insight** |  |  |
| Revenue analytics | - | ✓ |

*Source: Vioscale. Generated 2026-09-01T16:44:31.295Z. "-" = undocumented, not absent.*