| What it does | A Rust performance profiler for finding CPU, memory, async, SQL, HTTP, I/O and lock bottlenecks
| Track token usage and costs for AI coding agents on your Mac
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| Stage | Not given
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| Founded | Not given
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| Based in | PL
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| Pricing model | Open source
| Paid
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| Pricing | Free and open source under MIT license
| $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.
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| Key features | - Time, CPU & memory profiling
- Async observability for futures, channels and streams
- I/O monitoring for files, TCP and compression streams
- SQL query profiling for sqlx and Diesel
- HTTP calls profiling for reqwest and ureq
- HTTP server profiling for axum routes
- Concurrency metrics for Mutex and RwLock
- Tokio runtime monitoring
- Prometheus & Grafana integration
- CI regression detection with automatic benchmarking
| - 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
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| What makes it different | - No overhead when disabled—all macros compile to no-ops
- Deterministic instruction counts with Callgrind for stable CI regression checks
- Instruments real applications with real workloads, not isolated benchmarks
- MCP server for AI agent integration
- Live TUI dashboard and static reports
| - 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
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| Free plan | Not given
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| Open source | Not given
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| Platforms | Not given
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| Public API | Not given
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 54 ▲ +2 (up) since last check | 5 ● no change since last check |
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| Trust Flow (Majestic) | 13 | 1 |
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| Citation Flow (Majestic) | 34 | 20 |
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| Referring domains (Majestic) | 151 | 29 |
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JP the Cat