It runs on your machine, reads the transcript files your tools already write to disk, and calls the official usage APIs with the tokens you already have locally. No account, no telemetry.
brew install tristan666666/tap/agentisland
Also binaries available for download.
| Agent Island | CodexBar | ClaudeBar | Usage4Claude | Vibe Island | ccusage | |
|---|---|---|---|---|---|---|
| Price | Free | Free | Free | Free | Paid (from $14.99, one-time) | Free |
| Source and license | MIT, open-source | MIT, open-source | Public GitHub repo; no license declared | MIT, open-source | Closed-source | Public GitHub repo |
| Platforms | macOS + Windows | macOS | macOS | macOS | macOS | CLI (any OS with Node) |
| Where it lives | Menu bar / notch + floating bar | Menu bar | Menu bar | Menu bar | Notch | Terminal |
| Live agent status | ✓ working / your turn / stalled | — | — | — | ✓ | — |
| Alarm when a run needs you | ✓ turn alarm (sound + popup) | quota alerts only | — | — | ✓ event sound alerts | — |
| Usage & reset countdown | ✓ Claude 5h + weekly Codex weekly | ✓ | ✓ | ✓ | ✓ | Usage reports |
| Agents / providers covered | Claude Code + Codex | Broad multi-provider coverage | Claude, Codex, Gemini, Copilot + others | Claude + Codex | Multiple coding agents | Claude, Codex, Gemini + others |
| Local operation documented | ✓ no Agent Island account or product telemetry | ✓ privacy-first, reuses provider sessions | ✓ native local app | ✓ native local app | ✓ local-first advertised | ✓ local CLI |
Last modified 11 September 2026