OpenSign vs Penneo Sign
| OpenSign | Penneo Sign | |
|---|---|---|
| Free plan | Yes | No |
| Free trial | No | No |
| Paid from | Free | DKK 899/mo |
| Open source | No | No |
| Platforms | api, Linux, macOS, self-hosted, Web, Windows | api |
| Free plan | Yes | No |
| Audit trail | Yes | Yes |
| Document templates | Yes | Yes |
| Bulk sending | Yes | Yes |
| API access | Yes | Yes |
| SMS authentication | Yes | Yes |
| Signature order | both | both |
Both are listed in Best E-Signature Software. On Everything Xiaomi, OpenSign scores higher on our published basis.