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Nitro Sign
What Nitro Sign is
Nitro Sign is a cloud service for sending, signing, and managing electronic documents through the web or an API. Standard supports envelopes containing one or more documents, predefined form fields, audit logs of signing activity, and manual reminders. An envelope can contain up to 15 documents and go to one or more recipients, with only completed envelopes counting toward plan allowances. Plus adds reusable templates with custom fields and workflows, multiple-recipient sending, SMS or email verification, single sign-on, and branding. Enterprise adds API access and signing methods including digital certificates and ID verification for eIDAS AES/QES or ZertES requirements. Integrations include Microsoft 365, Salesforce, Google Drive, OneDrive, Dropbox, and Zapier. Nitro describes encryption, authentication protections, SOC 2, HIPAA, and ISO 27001 certifications, plus regular third-party audits. Nitro Sign states compliance with eIDAS, UETA, and the U.S. ESIGN Act.
Who it suits
Standard is positioned for individuals and small teams. Plus suits teams needing more automation, while Enterprise targets organizations requiring tailored scale, API access, or specialized signing methods.
What it does well
- Web and API access
- Audit logs and manual reminders
- Reusable templates and workflows
- Multiple document integrations
- 14-day trial available
What to know first
- No free plan
- Envelopes limited to 15 documents
- Enterprise features target specialized requirements
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| Nitro Sign Standard | annually; per user/month · 5 individual reusable workflow templates · only completed envelopes count toward allowance | On request |
| Nitro Sign Enterprise | subscription; custom pricing and configurations · volume discounts available · API · advanced and qualified signing methods | On request |
| Nitro Sign Plus | subscription; contact sales for pricing · volume discounts available · unlimited individual reusable workflow templates | On request |
As gonitro.com lists them, read 11 Oct 2026. The maker's own page has the final word.
Verdict
Nitro Sign covers core electronic signing through more advanced workflows and enterprise identity options. Its trial allows evaluation, but buyers must request pricing and choose the plan matching their signing requirements.
Facts from Nitro Sign's own pages
- API access
- The Nitro Sign API is available to Enterprise customers and can create, send, retrieve, and track signature requests, with webhook events for envelope progress. · gonitro.com, 11 Oct 2026
- Audit trail
- Yes · gonitro.com, 20 Sept 2026
- Bulk sending
- Yes · gonitro.com, 20 Sept 2026
- Company history
- Nitro says it was founded in Melbourne more than two decades ago; the page does not state an exact founding year. · gonitro.com, 11 Oct 2026
- Document templates
- Yes · gonitro.com, 20 Sept 2026
- Enterprise signing
- Enterprise offers an API and signing methods including digital certificates and ID verification for eIDAS AES/QES or ZertES requirements. · gonitro.com, 11 Oct 2026
- Envelope limits
- An envelope can contain up to 15 documents and go to one or more recipients; only completed envelopes count toward the plan allowance. · gonitro.com, 11 Oct 2026
- Free plan
- No · gonitro.com, 20 Sept 2026
- Free trial
- Nitro advertises a 14-day trial that includes eSign functionality and does not require a credit card. · gonitro.com, 11 Oct 2026
- Integrations
- Nitro lists Microsoft 365, Salesforce, Google Drive, OneDrive, Dropbox, and Zapier among its integrations. · gonitro.com, 11 Oct 2026
- Intended users
- Nitro positions Standard for individuals and small teams, Plus for teams and businesses needing greater automation, and Enterprise for organizations needing a tailored scalable solution. · gonitro.com, 11 Oct 2026
- Legal compliance
- Nitro Sign states compliance with eIDAS, UETA, and the U.S. ESIGN Act. · gonitro.com, 11 Oct 2026
- Plus features
- Plus adds reusable templates with custom fields and workflows, sending to multiple recipients, SMS or email code verification, single sign-on, and branding. · gonitro.com, 11 Oct 2026
- Purpose
- Nitro Sign is a cloud-based electronic signature service for sending, signing, and managing documents. · gonitro.com, 11 Oct 2026
- Security
- Nitro describes encryption and authentication protections and cites SOC 2, HIPAA, and ISO 27001 certifications and regular third-party audits for Nitro Sign. · gonitro.com, 11 Oct 2026
- Signature order
- both · gonitro.com, 20 Sept 2026
- SMS authentication
- Yes · gonitro.com, 20 Sept 2026
- Standard features
- Standard lets users send envelopes containing one or multiple documents, create and fill forms with predefined fields, view signing activity in an audit log, and send manual reminders. · gonitro.com, 11 Oct 2026
- Support
- Nitro says its expert team provides eSigning help with setup, change management, troubleshooting, and support. · gonitro.com, 11 Oct 2026
Where Nitro Sign stands on Freedom251
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- E-signature tools#49 of 68
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