Compare

ProductPrice · sourcePlatformsSurfaceLive stateUsageBest fit
Agent IslandFree · MITmacOS + WindowsMenu bar, notch + floating barClaude · Codex · Antigravity · Grok · CursorClaude · Codex · Antigravity · Grok · CursorCross-platform session attention
CodexBarFree · MITmacOSMenu barNot documented; quota alertsBroad provider coverageCompact multi-provider quotas
ClaudeBarFree · public repo, no license declaredmacOSMenu barNot documentedClaude, Codex, Antigravity, Copilot + othersNative provider usage view
Usage4ClaudeFree · MITmacOSMenu barNot documentedClaude + Codex limitsFocused quota countdowns
Vibe IslandPaid · closed sourcemacOSNative Swift notch appSessions, permissions + soundsDocumentedNative Mac agent control
ccusageFree · public repoCLI / Node-supported OSTerminalNot documentedReports + machine-readable outputScriptable cost analysis
Open IslandFree · GPL-3.0macOS 14+Notch / top barSessions, permissions, jump-back + soundsClaude + Codex trackingOpen-source Mac control surface
Agent NotchFree · MITmacOS 12+Notch indicator + panelBusy, idle, done by process/transcript inferenceNot documentedZero-config Claude + Codex status

Product-by-product guides

Capabilities, comparison claims and official sources reviewed 2026-08-10 against Agent Island 2.1.2 and each product's public documentation. Corrections: hello@agent-island.dev