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JP the Cat vs Twinning

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

JP the Cat compared with Twinning
DetailJP the Cat logo JP the CatTwinning logo Twinning
What it doesTrack token usage and costs for AI coding agents on your Mac Open-source tool that turns an OpenAPI spec or schema into a local, runnable twin
StageNot given Not given
FoundedNot given 2023
Based inNot given US
Pricing modelPaid Open source
Pricing$12.99 one-time for one Mac; $9.99 per additional Mac. Includes free updates. 7-day free trial with no card required. After trial, the menu-bar cost total stays free; a license unlocks the full dashboard, widget, and alerts. Not given
Key features
  • Real-time menu bar cost display with cache-aware deduplication for Claude
  • Official 5-hour and weekly limit percentages for Codex, Claude, and Grok
  • macOS widget in small, medium, and large sizes
  • 24 themes including Sunlit light and Midnight dark modes
  • Per-provider and per-model cost breakdown dashboard
  • Configurable 7, 14, 30, or 90-day time windows
  • 80% usage alert with native macOS banner and optional meow sound
  • Notarized by Apple and Developer ID signed
  • Local-first design with no data upload to servers
  • REST API twin generation from OpenAPI spec
  • Postgres wire protocol support
  • Snowflake wire protocol support
  • MCP server support
  • Live behavior overlay on published specs
  • One-command agent installation
  • Deterministic test responses matching live behavior
What makes it different
  • Accurate real-dollar costs for Claude with cache awareness, unlike free tools that misprice cache tokens
  • Native Swift app with no Electron, designed for performance and minimal menu bar footprint
  • One-time purchase with free updates, no subscription or account required
  • Completely local data privacy—no prompts, code, or tokens ever leave your Mac
  • No backend required, serves twins directly from specifications
  • Supports multiple protocols: REST, Postgres, Snowflake, and MCP
  • Production behavior fidelity through live behavior overlay
  • MIT licensed open source with no cost
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)5 no change since last check27 −1 (down) since last check
Trust Flow (Majestic)15
Citation Flow (Majestic)2039
Referring domains (Majestic)2916

4 details filled in for both companies.

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