Documenso vs Signater

Documenso provides electronic signature workflows for creating, sending, and signing documents. Reusable templates can be shared through direct links for on-demand signing, and its API can create documents and trigger custom workflows, including user management. Webhooks automate notifications and updates through event triggers. Signing workflows can be embedded and white-labeled, including in React and Vue applications; Documenso also lists Zapier connections. The product describes itself as open source and says it shares its code, designs, and metrics. Its compliance page marks the U.S. ESIGN Act, UETA, eIDAS SES, 21 CFR Part 11, SOC 2, and HIPAA as compliant. ISO 27001, ZertES, eIDAS AES, and QES are listed as planned for 2026. Documenso is available on the web, by API, or self-hosted on a customer's infrastructure. The Free plan allows five documents per month and up to 10 recipients per document. Individual costs $25.00 per month billed yearly; Teams costs $40.00 per month billed yearly.

Signater is a digital contract service that lets businesses send, sign and track agreements through a browser. An envelope can gather several documents and signers into a sequential or parallel process, ending with a completion certificate. Signers can be checked using passwords, email or SMS codes, selfies with liveness checks, identity documents, facial biometrics or geolocation. Reusable templates hold standard text, with fields for variable details and a new version for each edit. The REST API can create and track envelopes, send them, upload documents, use templates, and retrieve signed files and certificates; API and webhook access is limited to Business and Enterprise plans. Webhooks send envelope events by POST and retry automatically. Signater lists HTTPS/TLS, HSTS and AES-256 encryption among its security measures, and signed PDFs can include embedded PAdES signatures, hashes and timestamps. Signers open links on phones or computers without an account or app. The platform and signing flow support six languages. A free plan includes three envelopes monthly; paid plans start at $39/mo.