| Price from | $2/mo | $0.46/mo |
| Free plan | — | — |
| Free trial | Yes | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| Windows | Yes | — |
| macOS | Yes | — |
| iOS | Yes | — |
| Android | Yes | — |
| Self-hosted | — | Yes |
| Plans published | 4 | 6 |
| Spec score · Email Signature Management Software | 8.3 (#11) | 7.3 (#40) |
| Headquarters | Marseille, France | San Salvador, El Salvador |
| Integrations | The site names Microsoft 365, Outlook, Exchange, Google Workspace, Gmail, Salesforce, HubSpot, and Salesloft among supported environments or tools. | Zumpul is presented as a Google Workspace Marketplace application and is designed for Google Workspace domains. |
| Security | Letsignit states it is ISO 27001 and ISO 27018 certified and GDPR compliant. | The privacy policy says Zumpul uses OAuth 2.0 for Google authentication and authorization and does not access consumer @gmail.com account data. |
| Signature design | Its drag-and-drop editor supports fonts, colors, layouts, dynamic links, disclaimers, and HTML import. | The homepage describes creating signatures with a drag-and-drop editor or HTML code and using a template gallery. |
| Support | The pricing page lists a dedicated Customer Success and Support team of 16 experts for Email signatures & vCards and Slides. | The PRO plan lists support and training 24/7 and implementation consulting. |
