| Price from | $29/mo | $8,333.33/mo |
| Free plan | Yes | — |
| Free trial | Yes | — |
| Open source | — | — |
| Web | Yes | Yes |
| Windows | Yes | — |
| macOS | Yes | — |
| Linux | Yes | — |
| API | Yes | Yes |
| Self-hosted | Yes | — |
| Plans published | 4 | 3 |
| Spec score · Multichannel Ecommerce Software | 8.5 (#11) | 8.6 (#6) |
| Integrations | Celerp Connect provides two-way connectors for WooCommerce, QuickBooks and Xero; Shopify sync is marked coming soon. | Fulfil lists integrations for ecommerce channels, marketplaces, 3PLs, shipping carriers, financial tools, and more than 500 EDI retailers. |
| Product | Celerp is a local-first ERP combining inventory, invoicing, CRM, accounting, purchasing and manufacturing on the user's machine. | Fulfil describes itself as an agentic ERP built for Shopify Plus and direct-to-consumer brands. |