eContract vs signNow
See how eContract's signing security, tamper detection and audit trail compare with signNow.
eContract
Free contract signing with verifiable e-signatures
- Signer certificate, organization seal, platform seal and RFC 3161 timestamp on every signed PDF
- Changes after signing show up when the PDF is verified
- Hash-chained audit trail for every contract
- Public verification page — no account needed
Free — every feature included
signNow
E-signature solution by airSlate
- Lower-cost per-user e-signature plans
- Plans include a yearly quota of signature invites per user
- Audit trail
- See signnow.com for current plans and features
From $9/month, billed annually
eContract vs signNow — Feature Comparison
Security & Document Integrity
Core Features
API & AI agents
Pricing
Competitor information from their public websites as of October 2026; check their sites for current details.
Why consider eContract instead of signNow?
Four layers on every signature
Every signed PDF carries the signer’s certificate-based signature, the organization seal, the eContract platform seal and an RFC 3161 timestamp.
Tamper-evident documents
If a signed PDF is changed after signing, its signatures no longer match and verification reports it. Audit trail events are hash-chained, so edits to the log can be detected.
Public verification
Anyone can check a signed PDF at econtract.online/verify — no account needed.
A certificate authority per workspace
Each workspace gets its own certificate authority under the eContract root (an internal PKI). Certificate details are shown on the verification page.
API, webhooks and MCP for AI agents
Automate contracts with the REST API (API key or OAuth 2.1) and webhooks, or connect AI agents to the MCP server. Agents prepare and send; a person always signs.
Free to Use
Every feature is free today, with fair-use limits. No credit card, no per-user fees, no contract lock-in. If paid plans come later, you will hear from us at least 30 days in advance.
eContract vs signNow — FAQ
How does eContract’s signature security compare with signNow?
eContract adds four layers to every signed PDF: a signature with an X.509 certificate from the workspace’s certificate authority, an organization seal, a platform seal and an RFC 3161 timestamp, plus a hash-chained audit trail and a public verification page. signNow has its own security features and certifications; check its website for current details.
Can I migrate from signNow to eContract?
You can upload PDF and DOCX documents and templates to eContract and send them for signature, by hand or through the REST API. Contracts already signed with signNow keep their original signatures and audit trail there, so keep a copy of them.
What does eContract’s audit trail record?
Each event — created, sent, viewed, signed, declined — is logged with the time, IP address and browser, and linked to the previous event by a hash, so changes to the log can be detected. Signed PDFs also carry an RFC 3161 timestamp from a timestamp authority.
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