Certinal vs OpenSign
Certinal
certinal.com
OpenSign
opensignlabs.comSide by side
| Figure | Certinal | OpenSign |
|---|---|---|
| Price from | Free | $9.99/mo |
| Free plan | Yes | Yes |
| Free trial | Yes | Yes |
| Open source | — | Yes |
| Web | Yes | Yes |
| Windows | — | Yes |
| macOS | — | Yes |
| Linux | — | Yes |
| iOS | Yes | — |
| Android | Yes | — |
| API | Yes | Yes |
| Self-hosted | — | Yes |
| Plans published | 7 | 5 |
| Spec score · E-Signature Software | 8.6 (#15) | 9.0 (#4) |
| Spec score · E-signature tools | 8.5 (#20) | 8.9 (#10) |
| Spec score · Electronic Signature Software | 8.6 (#10) | 9.0 (#3) |
| API | The API Enterprise plan includes REST API, embedded signing, white-labeling, real-time reporting, and customized workflows. | OpenSign exposes a REST API authenticated with an x-api-token header and provides sandbox, production and EU endpoints. |
| API access | Yes | Yes |
| Audit trail | Yes | Yes |
| Bulk sending | Yes | Yes |
| Document templates | Yes | Yes |
| Integrations | The integrations page lists Salesforce, SharePoint, Workday, SAP, Oracle, and Google connectors. | The Professional plan lists Zapier integration, Dropbox import and custom Gmail or SMTP sending. |
| Product | Certinal describes itself as a healthcare consent and compliance platform that captures, digitally signs, version-controls, and files patient consent to the EHR. | OpenSign describes itself as an open-source PDF e-signature solution for signing, storing, and securing documents. |
| Security | The healthcare product page says data is encrypted at rest with AES-256 and in transit with TLS 1.2 or higher, with a signed BAA for healthcare customers. | The API documentation lists TLS-encrypted transport, audit trails, IP logging, and tamper-evident signed PDFs. |
| Signature order | both | both |
| SMS authentication | Yes | Yes |
Plans
Certinal
- Consent and Compliance EnterprisePrice not published
- eSign EnterprisePrice not published
- eSignature API EnterprisePrice not published
- eSignature API SandboxFree
- Consent and Compliance Enterprise PlanPriced on request
- eSignature API Enterprise PlanPriced on request
- eSign Enterprise PlanPriced on request
OpenSign
- FreeFree
- Professional$9.99 a month
- Teams$19.99 a month
- FreeFree
- EnterprisePriced on request
In their own words
Certinal
Certinal is a healthcare consent and compliance platform for capturing, signing, version-controlling, and filing patient consent to an electronic health record. Its workflows cover surgical, procedure-specific, clinical trial, general treatment, and data-processing consent. Patients can complete registration and consent before appointments through secure SMS or email links. The eSignature product supports sequential, parallel, and hybrid signing, alongside templates, bulk sending, audit trails, SMS authentication, and configurable signing order. Certinal says it connects directly with Epic, Oracle Cerner, MEDITECH, and OpenEMR; other systems can connect through HL7 and FHIR APIs. Listed business connectors include Salesforce, SharePoint, Workday, SAP, Oracle, and Google. The API Enterprise plan includes REST API access, embedded signing, white-labeling, real-time reporting, and customized workflows. The healthcare product page describes AES-256 encryption at rest and TLS 1.2 or higher in transit, with a signed BAA for healthcare customers. Certinal is available on Android, iOS, web, and via API. Pricing is on request, and the eSign FAQ offers a two-week trial at no additional cost.
OpenSign
OpenSign is an open-source PDF e-signature solution for signing, storing, and securing documents. Users can create reusable templates with pre-placed widgets and send them through the API to one or many signers. API workflows include self-signing, drafts, signer roles, public template links, and real-time webhook notifications. Templates can be embedded in React, Next.js, HTML, JavaScript, and Angular projects. The documentation lists TLS-encrypted transport, audit trails, IP logging, and tamper-evident signed PDFs; account protection includes two-factor authentication and passkey sign-in. The free plan costs nothing and lists unlimited digital signatures and templates, completion certificates, sequential signing, OpenSign Drive, and email notifications. Its free-plan guide limits invitation emails to 15 per month; bulk sending and public links require a paid plan. Live API tokens require Professional or Teams, though sandbox tokens are available on all plans. OpenSign provides Docker self-hosting instructions for Linux, macOS, and Windows. Some SMTP features are limited to paid plans.