Features

A whole system monitor, hiding in one icon

SpinCat surfaces exactly what you need from the menu bar — and keeps everything else one click away.

🐱

The rotating cat icon

The status icon is always present as a template image that adapts to light and dark menu bars. Its rotation speed is driven only by CPU and GPU activity.

  • Idle, static, and paused states so a quiet Mac shows a quiet cat
  • Sensitivity, rotation-speed multiplier, and a maximum frame-rate cap
  • Honors Reduce Motion and eases back under thermal pressure
  • Choose the activity driver: max of CPU/GPU, CPU only, or GPU only
📊

The popover

Click the icon for two rows of tiles — system metrics and AI providers — above a detail area that swaps in the selected item.

  • System row: CPU, GPU, memory, disk, and network with live values
  • Per-metric detail with a 60-second history chart and inline settings
  • AI row shows enabled providers with their current quota
  • A SpinCat preview card with the effective activity value and source
📌

Menu bar items

Beyond the cat, pin any metric's value as its own menu bar item and order them exactly how you like.

  • Unified visibility and ordering for CPU/GPU/memory/disk/network and AI
  • Clicking an item opens the popover focused on that exact metric
  • Network collapses up/down into a single total for a compact readout
  • Switch AI values between usage and remaining
🤖

AI usage monitoring

An opt-in tracker for the plan quotas of the AI tools you already use. It stays off until you enable it and choose providers.

  • ChatGPT, Claude, Cursor, Antigravity, and Copilot
  • Quota bars show where you are in a 5-hour or weekly window
  • Credentials live in app-managed files or the Keychain — never the cache
  • A provider that needs sign-in jumps straight to Settings
🎛️

Settings that respect you

A macOS-style sidebar covers General, Animation, System Metrics, Menu Bar, AI Usage, and Advanced — all searchable.

  • Toggle each metric module, set the sample interval, pick sources
  • App language picker with eight localizations
  • Everything is keyboard navigable with VoiceOver labels
  • Advanced spells out the local-only and opt-in-network policies
🚀

Launch at login

Register SpinCat to start with your Mac in one toggle, built on the modern SMAppService API — no legacy login-item hacks.

  • One switch, with live registration status
  • Runs as an accessory app with no Dock icon (LSUIElement)
  • Sandboxed, notarized, and App Store ready