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Comet vs NoMac

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

Comet compared with NoMac
DetailComet logo CometNoMac logo NoMac
What it doesThe AI Developer Platform On-demand cloud macOS for AI agents, billed per minute
StageNot given Startup
Founded2017 2026
Based inUS Not given
Pricing modelNot given 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
  • LLM trace logging with 40+ integrations
  • Automatic error detection and diagnostics
  • Ollie agent for code fix recommendations
  • Test Suites and 40+ LLM-as-a-judge evaluation metrics
  • Production dashboards and alerts for agents
  • Prompt playground and optimization
  • Agent Playground for local agent development
  • Cost intelligence for Claude Code and Codex tracking
  • 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
  • Truly open-source platform with enterprise-grade infrastructure
  • Traces appear almost instantly even at high volumes
  • Flexible hosting options including self-hosted, cloud, and custom deployments
  • Easy integration with just a few lines of code
  • Opik automatically turns trace data and eval results into code fixes
  • 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)74 +1 (up) since last check20 −1 (down) since last check
Trust Flow (Majestic)2813
Citation Flow (Majestic)5128
Referring domains (Majestic)4448140

4 details filled in for both companies.

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