# OpenSign vs Zoho Sign

**Leader by vioscaleAI score:** Zoho Sign

| Attribute | OpenSign | Zoho Sign |
|---|---|---|
| **vioscaleAI score** | 35.4 (42% (low)) | 48.6 (51% (medium)) |
| content.faq | `[{"answer":"An open-source solution that enables secure signing, storage, and management of digital documents, offering a no-cost alternative to commercial e-signature services. It is indexed under Esignature.","source":"https://www.opensignlabs.com","question":"What is OpenSign?","confidence":0.6},{"answer":"OpenSign is open source, so it can be self-hosted and used at no licence cost. Paid editions are also offered: Professional, priced on request. Pricing changes often, so verify at source before relying on it.","source":"https://www.opensignlabs.com","question":"Is OpenSign free to use?","confidence":0.6},{"answer":"We have confirmed browser-based access to OpenSign. That is the extent of what we could verify from public sources, so it may well offer desktop or mobile clients we have not indexed.","source":"https://www.opensignlabs.com","question":"What platforms does OpenSign support?","confidence":0.6},{"answer":"Yes. OpenSign can be deployed cloud / SaaS and self-hosted, so it does not have to run on the vendor's infrastructure.","source":"https://www.opensignlabs.com","question":"Can OpenSign be self-hosted?","confidence":0.6}]` | `[{"answer":"A cloud-based service for creating and managing electronic signatures on business documents with legal validity in most countries. Supports qualified digital certificates, multi-signer workflows, payment collection, and compliance across borders. It is indexed under Esignature.","source":"https://www.zoho.com/sign/","question":"What is Zoho Sign?","confidence":0.6},{"answer":"Zoho Sign offers a free tier, so you can start without paying. Paid plans are also available: Free and Paid Plans. Pricing changes often, so verify at source before relying on it.","source":"https://www.zoho.com/sign/","question":"Is Zoho Sign free?","confidence":0.6},{"answer":"We have confirmed browser-based access to Zoho Sign. That is the extent of what we could verify from public sources, so it may well offer desktop or mobile clients we have not indexed.","source":"https://www.zoho.com/sign/","question":"What platforms does Zoho Sign support?","confidence":0.6},{"answer":"We have only confirmed a cloud / SaaS deployment for Zoho Sign, so it appears to be vendor-hosted. If a self-hosted option exists we have not found it documented publicly.","source":"https://www.zoho.com/sign/","question":"Can Zoho Sign be self-hosted?","confidence":0.6},{"answer":"We have confirmed 5 integrations for Zoho Sign, including REST API, Zoho CRM, Zoho Creator, Zoho Books and Zoho Catalyst. This is what we could verify from public sources, so the vendor may support others we have not indexed.","source":"https://www.zoho.com/sign/","question":"What does Zoho Sign integrate with?","confidence":0.6},{"answer":"We have independently confirmed SOC 2, ISO 27001, HIPAA and GDPR for Zoho Sign. Certifications we do not list are ones we have not been able to verify from public sources, which is not the same as Zoho Sign not holding them. Always confirm compliance directly before you rely on it.","source":"https://www.zoho.com/jp/compliance.html","question":"What security certifications does Zoho Sign have?","confidence":0.7},{"answer":"Zoho Sign is available worldwide. Its primary market is the United States. The vendor is headquartered in India.","source":"https://www.zoho.com/sign/","question":"Where is Zoho Sign available?","confidence":0.75}]` |
| deployment.options | `{"cloud":true,"self_hosted":true}` | `{"cloud":true}` |
| description.long | An open-source solution that enables secure signing, storage, and management of digital documents, offering a no-cost alternative to commercial e-signature services. | A cloud-based service for creating and managing electronic signatures on business documents with legal validity in most countries. Supports qualified digital certificates, multi-signer workflows, payment collection, and compliance across borders. |
| features.capabilities | `{"audit_trail":true,"embedded_api":true}` | `{"hipaa_available":true}` |
| integrations.count | 1 | 5 |
| integrations.list | `[{"name":"Zapier"}]` | `[{"name":"REST API"},{"name":"Zoho CRM"},{"name":"Zoho Creator"},{"name":"Zoho Books"},{"name":"Zoho Catalyst"}]` |
| market.availability | `{"primaryMarkets":[],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` | `{"hqCountry":"IN","primaryMarkets":["US"],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` |
| platform.support | `{"web":true}` | `{"web":true}` |
| pricing | `{"type":"hybrid","plans":[{"free":true,"name":"Free","features":["Unlimited e-signatures","Invite and collaborate","Completion certificates with access logs","Secure document storage","Multi-signer support","Email OTP verification for guest signers","Document expiration settings","API access"],"components":[{"kind":"fixed","amount":0,"period":"month","currency":"USD"}],"description":"Unlimited signatures with document storage","contactSales":false,"includedLimits":{"signatures":"unlimited/month"}},{"free":false,"name":"Professional","features":["Advanced features"],"description":"Paid tier with advanced professional features","contactSales":false}],"summary":"Free tier with unlimited signatures. Professional paid plans available (pricing not publicly listed).","freeTier":true,"sourceUrl":"https://www.opensignlabs.com","retrievedAt":"2026-08-19T09:05:11.948Z","billingPeriods":["month","year"]}` | `{"type":"freemium","plans":[{"free":true,"name":"Free","summary":"Free for up to 5 documents/month","components":[{"kind":"fixed","amount":0,"period":"month","currency":"USD"}],"description":"For individuals","contactSales":false,"includedLimits":{"documents_per_month":"5"}},{"free":false,"name":"Paid Plans","description":"For businesses","contactSales":false}],"summary":"Free tier available; paid plans at undisclosed per-user/month rate","currency":"USD","freeTier":true,"sourceUrl":"https://www.zoho.com/sign/","retrievedAt":"2026-08-19T09:04:38.317Z","freeTrialDays":14,"billingPeriods":["month"]}` |
| pricing.free_tier | yes | yes |
| pricing.model | open_source | freemium |
| pricing.price_level | free | low |
| pricing.transparent | yes | - |
| security.certifications | - | `[{"name":"ISO/IEC 27001","status":"active","validUntil":"2028-08-21"},{"name":"ISO/IEC 27701","status":"active","validUntil":"2028-08-21"},{"name":"ISO/IEC 27017","status":"active","validUntil":"2028-08-21"},{"name":"ISO/IEC 27018","status":"active","validUntil":"2028-08-21"},{"name":"ISO 9001","status":"active","validUntil":"2029-02-02"},{"name":"ISO/IEC 20000-1","status":"active","validUntil":"2027-07-29"},{"name":"ISO 22301","status":"active","validUntil":"2026-11-20"},{"name":"SOC 2 Type II","level":"Type II","status":"active"}]` |
| security.gdpr | - | yes |
| security.hipaa | - | yes |
| security.iso27001 | - | yes |
| security.soc2 | - | yes |
| security.trust_center | - | https://www.zoho.com/compliance.html |

## Capabilities (Esignature)

| Capability | OpenSign | Zoho Sign |
|---|:--:|:--:|
| **Capabilities** |  |  |
| Qtsp | - | - |
| Esign ueta | - | - |
| Cfr part11 | - | - |
| Audit trail | ✓ | - |
| In person signing | - | - |
| Embedded API | ✓ | - |
| Bulk send templates | - | - |
| SOC2 | - | - |
| HIPAA available | - | ✓ |
| Ron | - | - |

*Source: vioscaleAI. Generated 2026-10-16T19:18:51.612Z. "-" = undocumented, not absent.*