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Castov vs Perch

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

Castov compared with Perch
DetailCastov logo CastovPerch logo Perch
What it doesFast, 100% client-side developer platform with zero-data logging A calm Mac app that runs your Claude Code sessions side by side and tells you which one needs you
StageNot given MVP
FoundedNot given Not given
Based inNot given Not given
Pricing modelFree Free
PricingAll tools are free with no usage limits. The site may show ads in the future to cover running costs. Not given
Key features
  • 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
  • Dashboard grouped by whose move it is
  • Notifications only when a session, reviewer, or CI needs you
  • Chat view and the real Claude Code terminal
  • Automatic PR tracking across repos and worktrees
  • Deep focus mode
  • Sessions that keep running across restarts and updates
  • Import existing Claude Code sessions
  • Next steps with owners and status Claude keeps up to date
  • Works with GitHub, GitLab, Jira, and Azure Boards
What makes it different
  • 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
  • All data stays on your Mac with no account required
  • No tracking or analytics
  • Notarized by Apple with built-in privacy
  • Quiet until something needs you
  • Free beta with no pricing 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)2 −4 (down) since last check1 no change since last check
Trust Flow (Majestic)10
Citation Flow (Majestic)1913
Referring domains (Majestic)723

4 details filled in for both companies.

More alternatives to Castov More alternatives to Perch

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