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SentryScreen 0.4.0
The first open-source release of SentryScreen: free, on-device, AGPL-3.0.
Install: download SentryScreen-0.4.0.pkg below and open it from an administrator account. It is Developer ID signed and notarized by Apple. Requires macOS 14 or later; tested on Apple silicon with macOS 27 (Intel and macOS 14–26 build but are untested — reports welcome).
What's in it
- Free: no license, trial, account or subscription.
- Nothing leaves your Mac unless you choose to send a diagnostic report, which you review in full first (docs/diagnostics.md).
- No root helper and no auto-updater; new versions arrive here on GitHub Releases.
- The tuning tools (Settings › Developer, detection view) are in every build.
- "Uninstall SentryScreen…" is always reachable from the popover and the Setup window.
Verify the download
shasum -a 256 SentryScreen-0.4.0.pkg # compare with SHA256SUMS.txt
spctl -a -vv -t install SentryScreen-0.4.0.pkg # source=Notarized Developer ID
Full notes: CHANGELOG.md. Found a missed or false cover? Open an issue — never attach explicit images.