MacID vs PromptSign.ai

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

MacID compared with PromptSign.ai
Detail	MacID	PromptSign.ai
What it does	Face ID authentication for Mac	Code signing for AI skills and agents
Stage	Not given	Not given
Founded	Not given	Not given
Based in	Not given	Not given
Pricing model	Open source	Not given
Pricing	Not given	Not given
Key features	Face recognition with 99.5% accuracy on standard datasets PAM module integration with macOS lock screen Secure Enclave encryption of password Automatic Keychain unlock after face authentication Multi-pose facial enrollment for better recognition Adjustable recognition threshold	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
What makes it different	Face ID functionality on Macs without dedicated depth sensors Preserves Keychain encryption and application functionality Open source with readable code Compact model at 6.6 MB download	Immutable transparency log that prevents silent key revocation Blocks unsigned or tampered instructions in Claude Code and Codex integration
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)	1 −1 (down) since last check	Not checked yet no change since last check
Trust Flow (Majestic)	8	1
Citation Flow (Majestic)	8	19
Referring domains (Majestic)	1	27

3 details filled in for both companies.

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