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UsageMaster and OpenLimiter

The only one that recommends a next action, and the only one that is not open source.

Platform
macOS 15 or later, from the Mac App Store. Mac only.
Licence
Not stated, and no public source repository was found. Free to download with a one time paid tier.
Coverage
Claude Code, Codex, Gemini CLI, OpenCode Go and Cursor.
Source
Both. It states that Claude Code, Codex and OpenCode Go usage is read from local files and not sent anywhere, while Cursor is fetched with a cookie you save in the keychain yourself.
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What it does

It is a macOS menu bar application that brings usage and reset times for several coding tools into one view and then makes a recommendation. Its store listing says it compares your current quota state and helps you decide whether to keep running, wait for a reset, or switch tools.

What it does well

It acts on the numbers rather than only rendering them. Comparing providers side by side and recommending which tool to use right now is the same problem OpenLimiter's advice policy exists to solve, and UsageMaster shipped a polished version of it first.

Where OpenLimiter differs

It is closed source, single platform, and covers five providers, with no documented programmatic output at all, so its recommendation lives inside its own window. OpenLimiter's advice is a machine readable block a running agent consumes, and the whole thing is Apache 2.0 and auditable.

Before you go looking

This is the one entry here that is not open source, so the claims above come from its store listing rather than from code anyone can read.

How these were checked

These notes were read off each project's own repository, README or store listing in August 2026. Software moves, so check the source before you rely on any of it, and open an issue if something here has gone stale or is simply wrong.