Agent IslandVS
Open IslandVerdict
Pick Open Island for a native macOS notch or top-bar control center with approvals and precise jump-back across ten documented agents. Pick Agent Island for a simpler MIT-licensed status companion that also runs on Windows and keeps five providers in one usage and attention model.
| Decision | Agent Island | Open Island |
|---|---|---|
| Price | Free | Free |
| License | MIT | GPL-3.0 |
| Platforms | macOS and Windows | macOS 14+ |
| Agents | Claude, Codex, Antigravity, Grok, Cursor | Ten documented |
| Live state | Claude, Codex, Antigravity, Grok, Cursor | Session tracking across documented agents |
| Direct approvals | No | Documented |
| Usage | Claude, Codex, Antigravity, Grok, Cursor | Claude and Codex documented |
| Privacy | Local, no account or telemetry | Local-first, no server, telemetry, or account |
| Install | GitHub Releases | GitHub Releases or Homebrew |
| Best fit | Cross-platform attention | Mac notch control |
Platform reach
Agent Island provides user-facing apps on macOS and Windows, while Open Island requires macOS 14 or later. That makes operating system support a decisive constraint before feature depth is compared Review the evidence source
Control depth
Open Island documents permission approvals and precise terminal or IDE jump-back. Agent Island foregrounds state and attention but does not claim direct approval, so Mac users who want control inside the notch gain more there Review the evidence source
License and provider scope
Both projects publish source, but MIT and GPL-3.0 impose different reuse terms. Open Island documents ten agents; Agent Island uses five providers and includes all five in Usage Review the evidence source
Moving from Open Island to Agent Island
Install Agent Island from GitHub Releases and compare both locally. No settings or history move across. You give up direct approvals, its broader terminal targeting, and several agents; you gain Windows support, MIT licensing, and Agent Island’s five-provider reports.
FAQ
Is Open Island free?
Yes. Its repository declares GPL-3.0 and documents GitHub and Homebrew installation.
Can both run together?
Yes for evaluation, but duplicate notifications should be disabled in one app.
Which supports Windows?
Agent Island supports Windows 10 and 11. Open Island documents macOS 14 or later.
Which has direct approvals?
Open Island documents permission approvals. Agent Island does not claim direct approval.
Do they upload code?
Both describe local-first operation. Agent Island states no account and no telemetry; Open Island states no server, telemetry, or account.