Authentisign is an electronic signature platform owned by Lone Wolf Technologies that's bundled with many MLS memberships in the US and Canada. It's widely adopted by default — many agents use it because it came with their MLS package, not because they chose it. It covers basic e-signature workflows but lacks AI features, transaction management, and security features that modern real estate platforms need.

Your Authentisign templates are typically standard state forms (CAR, TREC, FAR, etc.) that you upload and configure. In Zignature, you upload your PDF forms once and AI auto-detects all the fields — so you don't need to manually recreate your field placements. Most agents recreate their form library in Zignature in under an hour, and Zignature's State Disclosure Library includes 75+ pre-loaded forms.

Authentisign is often bundled into MLS dues, making it appear "free" — but it's included in your membership fee whether you use it or not. Zignature's pricing is transparent: per-seat with unlimited documents. For agents who send more than a handful of documents per month, Zignature's total cost of ownership is typically comparable or lower, especially once you factor in the additional tools it replaces (transaction management, RON, offer comparison).

Zignature connects to external systems via REST API, Zapier, and webhooks. For agents who use Lone Wolf's transaction management platform alongside Authentisign, Zignature can act as the e-signature layer while documents are managed in their existing system — or Transaction Rooms can replace the external TMS entirely.