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Keep Mac Awake vs Castov

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

Keep Mac Awake compared with Castov
DetailKeep Mac Awake logo Keep Mac AwakeCastov logo Castov
What it doesKeep your MacBook awake with the lid closed for long-running AI agents and tasks, no external display needed Fast, 100% client-side developer platform with zero-data logging
StageStartup Not given
FoundedNot given Not given
Based inNot given Not given
Pricing modelNot given Free
PricingFree 3-day trial (sessions up to 8 hours). Then $9 USD once per Mac, tax included. No subscription. All tools are free with no usage limits. The site may show ads in the future to cover running costs.
Key features
  • Keep MacBook awake with lid closed, no external display or keyboard needed
  • Sessions with no limit or custom duration up to 168 hours
  • Run on AC power by default, optional battery use down to chosen level
  • Built-in display off with lid closed
  • Command-line interface with JSON output for AI agents
  • Independent watchdog service restores normal sleep after failure
  • Thermal cutoff on battery at serious heat levels
  • No account, analytics, or logs required
  • Works with Claude Code, Codex, Gemini CLI, Cursor and other AI agents
  • Multi-timezone support with IANA database and daylight saving time
  • JSON to TypeScript conversion
  • JWT decoder and inspection
  • Cron expression parser and generator
  • End-to-end encrypted environment variable vaults
  • P2P multiplayer canvas with WebRTC and CRDT
  • Steganography for hiding encrypted secrets in images
  • Service Worker API mocker for frontend testing
  • Encrypted URL shares with hash fragment storage
What makes it different
  • Only keep-awake app with independent watchdog, thermal cutoff, and AI agent interface
  • Clamshell mode without external monitor, display, or keyboard
  • JSON interface allows agents to start, check, and stop sessions autonomously
  • Control agents from your phone while MacBook lid is closed
  • Zero-data logging: no keystroke sent to external servers, all processing in browser memory
  • 100% client-side operation works entirely offline
  • Unified ecosystem across web, CLI, and AI agents via MCP Server
  • Sub-millisecond performance with local execution
  • Tool chaining and piping for seamless multi-stage workflows
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)1 +1 (up) since last check1 +1 (up) since last check
Trust Flow (Majestic)01
Citation Flow (Majestic)019
Referring domains (Majestic)07

4 details filled in for both companies.

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