PromptSign.ai vs Vigilance

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

PromptSign.ai compared with Vigilance
Detail	PromptSign.ai	Vigilance
What it does	Code signing for AI skills and agents	Security for the apps your staff build with AI
Stage	Not given	Startup
Founded	Not given	2026
Based in	Not given	CA
Pricing model	Not given	Free trial
Pricing	Not given	Solo: Free for one person on one computer. Team: $49 per computer per month, or $490 per computer per year with 2 months free. Managed: $199 per computer per month, or $1,990 per computer per year with 2 months free, plus $2,500 one-time setup per company.
Key features	Sign skills and agents with verified identity authentication Verify file integrity using SHA-256 fingerprints Offline verification without internet connection Public transparency log for accountability Revoke trust for compromised keys or bad actors Support GitHub, Google, Microsoft and company account authentication Command-line tool for integration with Claude and Codex hooks	Checks packages AI tools and staff download on computers Detects when updates gain harmful new capabilities Automatically reverts to last safe version on paid plans Works with Claude Code, Cursor, Codex, Copilot, Devin Desktop and Gemini CLI Monthly reports on downloads per computer Alerts if Vigilance stops running on a computer for 3 days Security expert review before showing warnings on Managed plan Scans all apps on computer for Managed plan Written security report after setup on Managed plan
What makes it different	Immutable transparency log that prevents silent key revocation Blocks unsigned or tampered instructions in Claude Code and Codex integration	Catches zero-day supply chain attacks faster than security databases Analyzes file capabilities instead of relying on reputation or signatures Stays quiet by default, only alerts on meaningful changes Does not access code, files or team activity data
Free plan	Not given	Not given
Open source	Not given	Not given
Platforms	Not given	Not given
Public API	Not given	Not given
Community votes	0	0
DR (Domain Rating by Ahrefs)	Not checked yet no change since last check	5 no change since last check
Trust Flow (Majestic)	1	6
Citation Flow (Majestic)	19	26
Referring domains (Majestic)	27	26

3 details filled in for both companies.

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