Fratera NullKey vs HeimWall

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

Fratera NullKey compared with HeimWall
Detail	Fratera NullKey	HeimWall
What it does	Zero-knowledge encrypted vault for passwords, secrets, and private media	Security monitoring for AI coding tools that detects secrets and PII before they're sent
Stage	Not given	Startup
Founded	Not given	Not given
Based in	Not given	Not given
Pricing model	Not given	Not given
Pricing	Not given	Free individual app, forever. Team plans start at 10 seats with annual contracts; pricing quoted in writing per deployment. Enterprise plans available for large fleets.
Key features	TOTP authenticator with QR code import Password AutoFill for Safari and browsers Encrypted media storage with thumbnails and streaming Offline access with encrypted local cache Password strength audit and security tools Hidden and decoy vaults Secure notes and color-coded stickies Recovery Key and printable Emergency Kit AES-256-GCM encryption for vault and media Biometric Quick Unlock with Face ID or Touch ID	Real-time warning as you type Supports Cursor, Claude Desktop, VS Code with Copilot, ChatGPT Desktop, and Windsurf Deterministic detection with no AI model Local detection with no network call Manager dashboard with category, severity, tool, and engineer information End-to-end encryption with manager-held keypair Per-organization hash chain audit trail macOS 13+ on Apple Silicon
What makes it different	Zero-knowledge design where Decryption Key never leaves your device Separate Hidden Vault and optional decoy vault for sensitive data Stores more than passwords: API keys, authenticator codes, media, and secrets Configurable privacy protections including app-switcher shield Available offline with encrypted sync after reconnecting	Secrets are masked on the device before any record is created, so live secrets never reach company servers Deterministic regex rules instead of AI models, making detection explainable and consistent offline Contractual guarantee that detection data cannot be used for performance reviews
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 no change since last check	5 +3 (up) since last check
Trust Flow (Majestic)	3	3
Citation Flow (Majestic)	4	24
Referring domains (Majestic)	2	70

3 details filled in for both companies.

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