Last updated 21 August 2026. It applies to Mac Vitals, Mac Vitals Lite and this website.
Nothing. Mac Vitals has no accounts, no sign-in, no analytics, no crash reporting, no advertising identifiers and no "anonymous usage statistics". We cannot see how many people run it, which features they use, or whether it crashed. That is a deliberate trade: we lose product telemetry, you lose nothing.
Mac Vitals reads system telemetry from your Mac in order to display it to you: CPU load, memory statistics, GPU utilisation, disk throughput and free space, network throughput, battery and power state, hardware sensors, and — in the direct edition — running processes, listening ports and container statistics. All of it stays on your machine, in ~/Library/Application Support/MacVitals/. None of it is transmitted.
In its default configuration the app makes no outbound network connections whatsoever, and you can verify this with the app's own connection table or with lsof -i. Connections happen only where you create them:
127.0.0.1:11434 and LM Studio on 127.0.0.1:1234. These never leave your Mac.~/.macvitals/remotes.yaml, over SSH, to machines you nominate.No cookies, no analytics, no tracking pixels, no third-party scripts. Web fonts are served by Google Fonts, which sees the request your browser makes for the font file; if you prefer to avoid that, the site works with fonts blocked. Our host keeps standard server logs.
We keep the correspondence so we can help you, and to honour licences. We do not add you to a mailing list, and we do not share it.
These are developer tools. They are not directed at children and collect nothing from anyone.
If this policy ever changes materially, the date above changes and the previous version stays available in our public repository history. Given the policy is "we collect nothing", we do not anticipate interesting revisions.