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Original menu
Menu bar battery + balanced popover with power source, energy mode, and apps. Switch to Newer in settings for a denser compact chrome.
Free tier of Fathom: original-style battery menu for your Mac — live level, package watts, apps using energy, and a plain-language “why drain?” timeline. No account. No telemetry. Data stays on this Mac. Want weather + AI? That’s Fathom Pro.
Battery-first menu bar UI in Fathom’s original style, with an optional denser Newer layout — plus drain attribution.
Menu bar battery + balanced popover with power source, energy mode, and apps. Switch to Newer in settings for a denser compact chrome.
Full non-menubar UI: big %, package watts, clean rows, and drain detail — open from the menu or right‑click.
Top processes by local energy-impact estimate, with High / Moderate / Low labels.
Rolling local log + “why did battery drop?” summary for the last hour in plain English.
Curl installer compiles on your Mac, or drop in the App ZIP.
Battery + % appears. ⌘-drag to reposition; optional replace system Battery.
Open the panel for watts, top apps, and last-hour why-drain summary.
Fathom Air is the free battery app. Fathom Pro adds weather and multi-provider AI on the same core.
| Feature | Fathom Air | Fathom Pro |
|---|---|---|
| Price | Free | Free · unlock key |
| Menu bar battery % + time | Yes | Yes |
| Colored battery icon | Yes | Yes |
| Package watts + power distribution | Yes | Yes |
| Top energy apps · why drain? | Yes | Yes |
| Charge limit controls | Yes | Yes |
| Full window + Customize | Yes | Yes |
| Local weather | — | Yes |
| AI chat (your provider keys) | — | Yes |
| API Config (Keychain) | — | AI → API Config |
| Unlock | None | Vault oi-pl or scavenger |
/fathom/
fathom.chopstickshq.com
Curl installer compiles on your Mac. App ZIP is the quick path. Served from Chopsticks HQ (Netlify edge CDN).
Artifacts track version.json.
Hardened shell installer → compile → ~/Applications/Fathom.app (Fathom Air).
curl -fsSL https://chopstickshq.com/fathom/install.sh -o /tmp/fathom-install.sh && bash /tmp/fathom-install.sh
Also via subdomain after DNS: https://fathom.chopstickshq.com/install.sh. Requires Xcode Command Line Tools.
Unzip → open Fathom.app (branded Fathom Air). Right-click → Open the first time if Gatekeeper prompts.
Fathom does not create accounts and does not send usage data.
Optional update check can read version.json from this site only.
Process names and battery samples never leave your machine.
Disclaimer: All ChopsticksHQ software (including Fathom Air) is provided “AS IS” with no warranties. Use at your own risk. Full software disclaimer