Proof (formerly Notarize) vs Nexsys ClearSign
Side-by-side from the Top 11 ranking of The 11 Best Online Notary Software Platforms (2026). Last verified July 22, 2026.
The short answer
Proof (formerly Notarize) ranks higher on Top 11 (#1 vs #10) for Title companies, law firms, lenders, and businesses choosing a platform to notarize documents remotely and online. Best on-demand network with the deepest identity proofing.
At a glance
| Proof (formerly Notarize) | Nexsys ClearSign | |
|---|---|---|
| Top 11 rank | #1 / The 11 Best Online Notary Software Platforms (2026) | #10 / The 11 Best Online Notary Software Platforms (2026) |
| Score (out of 9.4) | 9 | 7.5 |
| Best for | On-demand RON at enterprise scale | RON wired into mortgage origination |
| Pricing | $$ (from around $25 per notarization; enterprise custom) | $$$ (enterprise, per-closing / custom) |
| HQ | Boston, USA | Farmington Hills, USA |
| Founded | 2015 | 2001 |
Proof (formerly Notarize)
Best on-demand network with the deepest identity proofing.
www.proof.comSee full entry in The 11 Best Online Notary Software Platforms (2026)
Nexsys ClearSign
Best RON integrated with the mortgage stack.
www.nexsystech.comSee full entry in The 11 Best Online Notary Software Platforms (2026)
Methodology and scoring weights live at /methodology. No vendor pays for placement — see about.