Skip to main content

Buyer workspace · this week · ranked by community votes

Sign in
List your SaaS

Nullgen AI Blocker vs Secret Once

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 Secret Once
DetailNullgen AI Blocker logo Nullgen AI BlockerSecret Once logo Secret Once
What it doesBlock AI on every device, from the prompt box to the app Share sensitive information that self-destructs
StageNot given Not given
FoundedNot given Not given
Based inNot given IE
Pricing modelFreemium Free
PricingFree 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
  • Password-protected links
  • Automatic content expiration
  • Self-destructing messages
  • No registration required
  • Advanced encryption protocols
  • GDPR and CCPA compliant
  • SOC 2 certified
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
  • Content automatically deleted from servers after one view, leaving no copies or backups
  • No trace in emails or chat logs
  • Complete anonymity with no registration or personal information needed
  • Hosted on Amazon Web Services for exceptional security
Free planNot given Not given
Open sourceNot given Not given
PlatformsNot given Not given
Public APINot given Not given
Community votes00
DR (Domain Rating by Ahrefs)Not checked yet no change since last check1 no change since last check
Trust Flow (Majestic)10
Citation Flow (Majestic)2511
Referring domains (Majestic)303

4 details filled in for both companies.

More alternatives to Nullgen AI Blocker More alternatives to Secret Once

Need help?