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Fenn vs Mac Ninja

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

Fenn compared with Mac Ninja
DetailFenn logo FennMac Ninja logo Mac Ninja
What it doesPrivate AI for macOS that finds what you saved, saw, or heard Not given
StageNot given Not given
FoundedNot given Not given
Based inFR SE
Pricing modelPaid Freemium
PricingFlex: $9/month billed annually with 6+ months free. Lifetime: $249 one-time payment with 6+ months free, includes 1 year of updates and lifetime access. Teams: $999 one-time payment with 6+ months free, includes all features for 5 Macs, lifetime access, and 1 year of updates. Yearly: $9.99/year (cancel anytime); Lifetime: $24.99 one-time payment. Both plans include every feature and work on up to 3 Macs.
Key features
  • Search inside 100+ file types including PDFs, videos, audio, images, documents, and design files
  • Screen memory search to recall meetings, chats, shared screens, and dashboards
  • Semantic and keyword search across files
  • Agentic search to find files matching specific criteria
  • Face recognition search
  • Auto-organize folders with files matching your criteria
  • Rename files automatically based on their content
  • Chat with files privately with citations to the source
  • Extract file data to CSV format
  • Anonymize sensitive information before sharing files
  • Unload idle browser tabs in Chrome, Safari, Brave, Edge, Arc and other browsers
  • Calm background CPU hogs without quitting them
  • Clean up tabs left behind by AI agents
  • Offload unused apps to save disk space
  • Live dashboard showing memory and CPU stats
  • Memory autopilot for automatic tab sleeping
  • Works on up to 3 Macs per license
  • Silent auto-updates
  • Minimal resource usage
  • No admin password required for normal use
What makes it different
  • Works offline with no file uploads required
  • Search across screen memory for content that was never saved as files
  • Supports 100+ file types from documents to creative files to code
  • Unlimited private AI chat with your files
  • Never closes your apps or tabs, only unloads idle tabs that reload instantly when clicked
  • Uses only standard macOS and browser features, no system changes or kernel extensions
  • Automatically cleans up tabs abandoned by AI agents after 8 hours
  • No tracking, no analytics, no account required
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)12 +1 (up) since last checkNot checked yet no change since last check
Trust Flow (Majestic)90
Citation Flow (Majestic)217
Referring domains (Majestic)1632

5 details filled in for both companies.

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