# UseReserve – a free macOS menu bar app for tracking Claude and Codex usage > Source: > Published: 2026-07-22 19:44:25+00:00 Open Codex and Claude Desktop once, then launch UseReserve to see the limits available on your Mac. Claude may request one-time permission to read your local sign-in. The UseReserve app is read-only and never stores credentials, cookies, or message content. This website uses privacy-first Cloudflare Web Analytics to count visits and page performance without cookies or personal profiles. Menu bar Open UseReserve again if its icon is missing. If your menu bar is crowded, close an unused menu-bar app so macOS has room to show it. Sign-in Open Codex or Claude Desktop and confirm you are signed in, then return to UseReserve. Claude permission Choose Connect Claude in UseReserve and approve access to Claude Safe Storage when macOS asks. Stale readings UseReserve keeps the last available reading during a temporary outage and shows when it was last updated. Refresh Open the more menu and choose Refresh after reconnecting to the internet or signing in again. Login Items If UseReserve does not start automatically, open System Settings → General → Login Items and enable UseReserve.