Nullgen AI Blocker vs Fratera NullKey

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

Nullgen AI Blocker compared with Fratera NullKey
Detail	Nullgen AI Blocker	Fratera NullKey
What it does	Block AI on every device, from the prompt box to the app	Zero-knowledge encrypted vault for passwords, secrets, and private media
Stage	Not given	Not given
Founded	Not given	Not given
Based in	Not given	Not given
Pricing model	Freemium	Not given
Pricing	Free extension forever with no account required. Family plan: 14 day trial, then $5.99/month for up to 4 children and 2 parents with dashboard and mobile apps. Enterprise plan: 30 day trial, then $10/seat/month for organizations.	Not given
Key features	Blocks AI prompts in browser Blocks 100+ known AI apps and websites On-device processing with no data collection Works across Chrome, Edge, Firefox, and Safari Mobile app for iOS and Android Centralized admin dashboard Access request approvals Real-time policy synchronization Force-install and pinning enforcement Zero-touch deployment via Intune, Jamf, Google Workspace, and Group Policy	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
What makes it different	Blocks prompts before they are sent, not just at the destination Single account manages browser, mobile, and desktop across the whole family or organization Free extension stays free forever with no account required No network changes, proxy, certificates, or DNS rules needed	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
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	1 no change since last check
Trust Flow (Majestic)	1	3
Citation Flow (Majestic)	25	4
Referring domains (Majestic)	30	2

3 details filled in for both companies.

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