OpenSign
8.4#1 in e-signature softwareFrom $9.99 a monthFree planWebAPILinuxmacOS
VisitOpenSign vs Signable API
Signable API
6.2#24 in digital signature api softwareFrom £480 a yearWebAPI
VisitWhat both publish
| Fact | OpenSign | Signable API |
|---|---|---|
| Integrations | The Professional plan lists Zapier integration, Dropbox import and custom Gmail or SMTP sending. | The company lists integrations including Google Drive, Zapier, Google Docs, Make, HubSpot, and Slack. |
OpenSign plans
- FreeFree
- Professional$9.99 a month
- Teams$19.99 a month
- EnterprisePriced on request
Signable API plans
- Pay As You Go£2.60, paid once
- Essentials£480 a year
- BusinessPriced on request
- EnterprisePriced on request
Pick OpenSign if…
OpenSign may suit individuals and businesses that need PDF signing, reusable templates, or API-based signing workflows. It also offers self-hosting instructions for those who want to run it on Linux, macOS, or Windows.
Pick Signable API if…
You want what its maker publishes above — check its page for the details.