| Price from | €100/mo | $10/mo |
| Free plan | — | Yes |
| Free trial | Yes | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| Windows | — | Yes |
| macOS | — | Yes |
| iOS | — | Yes |
| Android | — | Yes |
| API | Yes | Yes |
| Plans published | 2 | 7 |
| Spec score · E-Signature APIs Software | 7.9 (#14) | 8.6 (#5) |
| Spec score · Electronic Signature APIs | 7.9 (#17) | 8.6 (#6) |
| API access | Firma.dev describes its product as a plain REST API that can connect to unlisted platforms through a standard HTTP request. | Yes |
| Compliance | The security page lists eIDAS, UK eIDAS, ESIGN and UETA, GDPR, HIPAA-ready infrastructure, SOC 2, and ISO 27001, while stating that Firma.dev's SOC 2 Type II and ISO 27001 certifications are on its roadmap. | Zoho states compliance with ESIGN, UETA, eIDAS, GDPR, HIPAA, CCPA, PIPEDA, ITA 2000 and ETA frameworks or laws. |
| Encryption | Documents and metadata are encrypted at rest with AES-256 and protected in transit with TLS 1.2 or higher. | Zoho states that data uses SSL/TLS in transit and AES-256 encryption at rest. |
| Integrations | Firma.dev lists 27 integrations across seven categories, including MCP, Claude Code, ChatGPT, Salesforce, n8n, Zapier, Bubble, and WordPress. | Official integrations include Zoho CRM, Forms, Writer, Desk, People, Recruit, Books, Microsoft 365, Teams, Outlook, OneDrive, Google Workspace, Gmail, Google Drive, Dropbox, Box, HubSpot, Pipedrive, Zapier, Make and Power Automate. |
