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Perseus Computing vs NoMac

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

Perseus Computing compared with NoMac
DetailPerseus Computing logo Perseus ComputingNoMac logo NoMac
What it doesHigh-assurance infrastructure for AI agents On-demand cloud macOS for AI agents, billed per minute
StageNot given Startup
FoundedNot given 2026
Based inUS Not given
Pricing modelOpen source Paid
PricingNot given $0.90 per hour, billed per minute. Prepaid credit starts at $10, never expires and needs no subscription. Bigger top-ups add up to 20% bonus credit: $100 buys 133 hours. 7-day money-back guarantee on first purchase.
Key features
  • Harpe: chooses what an AI agent reads under a token budget with consistent results
  • Kibisis: keeps agent memory on your hardware with AES-256-GCM encryption
  • Argus: append-only record that detects edits with cryptographic verification
  • No network code by default for local and disconnected use
  • MIT License with published code, benchmarks and raw results
  • Real macOS on Apple M6 or M5 Pro silicon, ready in about a minute
  • Full admin access with no password prompts
  • Xcode 27 preinstalled with Homebrew, Node, Python and CocoaPods
  • iOS Simulator with screenshots and screen recordings
  • Persistent 20 GB encrypted drive between sessions
  • Control via MCP, CLI, API or SSH
  • App Store submissions and TestFlight uploads
  • Secrets management without chat exposure
  • Desktop view and control in browser
What makes it different
  • Measured empirical validation across 6,111 questions outperforming full-context models
  • Zero plaintext on disk with encrypted vaults matching plaintext accuracy
  • 78.3% fewer tokens sent to the model with a 1,200-token budget per turn
  • Preserves conversational chronology and relational qualifiers under token budgets
  • Agents work autonomously without human prompts or permission dialogs
  • Pay only for minutes used, not idle Mac time
  • Complete end-to-end app building and publishing from iOS Simulator to App Store
  • Built-in isolation and security with ephemeral sessions
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)42 +1 (up) since last check20 −1 (down) since last check
Trust Flow (Majestic)313
Citation Flow (Majestic)2428
Referring domains (Majestic)62140

4 details filled in for both companies.

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