| Price from | $8/mo | $2/mo |
| Free plan | — | — |
| Free trial | — | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| Windows | — | Yes |
| macOS | — | Yes |
| iOS | — | Yes |
| Android | — | Yes |
| Plans published | 4 | 4 |
| Spec score · Email Signature Management Software | 7.4 (#37) | 8.3 (#11) |
| Spec score · Email Signature Software | 7.4 (#27) | 8.3 (#10) |
| Company history | The about page says htmlsig has helped professionals create email signatures since 2012. | Letsignit's about page says founder Damien Neyret founded the company in 2013 to help companies manage, design, and deploy on-brand email signatures. |
| Integrations | The help center provides installation instructions for Gmail, Outlook, Apple Mail, Thunderbird, and other email clients. | The site names Microsoft 365, Outlook, Exchange, Google Workspace, Gmail, Salesforce, HubSpot, and Salesloft among supported environments or tools. |
| Product | htmlsig is a SaaS platform for creating, managing, and deploying professional HTML email signatures for individuals and teams. | Letsignit centralizes creation, management, and deployment of company email signatures. |
| Support | All plans include customer support accessible from the dashboard and help pages. | The pricing page lists a dedicated Customer Success and Support team of 16 experts for Email signatures & vCards and Slides. |
