Rastin
Utilities
Only for Mac
$9.99
Mac
Three Activity Rings on your desktop tell you exactly how safe your Mac is right now. Verified updates, CVE alerts, and a tamper-proof audit log, all in one place.
Rastin is the trust layer for Mac software.
Most Mac apps update themselves silently through their own auto-updater. You have no idea what's being installed, no record of it later, and no way to tell which version is the one a security researcher just disclosed a vulnerability for. Rastin fixes that.
ONE SCORE FOR YOUR WHOLE MAC
Rastin distils the security posture of every app you have into a single number, 0 to 100, displayed in three Activity Rings. Glance at the menu bar green, amber, or red and you know whether you're fine or whether something needs your attention. No more guessing.
DESKTOP WIDGETS
Add the Rastin Score widget to your desktop or Notification Centre and your Mac's trust posture is always in your peripheral vision. Add the Updates Available widget to see at a glance which apps need updating, with each verdict colour-coded by risk.
ONE PLACE FOR EVERY UPDATE
Rastin discovers every app on your Mac, from the App Store, from Sparkle-based apps like 1Password and Things, from Homebrew casks, and from direct downloads. They all show up in one window with one badge: Verified, Partial, Suspicious, Vulnerable, or Unknown.
CRYPTOGRAPHICALLY VERIFIED
Every Verified update is signed end-to-end with Ed25519 keys rooted in the Rastin catalogue. The signature chain is checked against a fingerprint pinned in the app binary itself. If a vendor's download server is compromised tomorrow, Rastin still won't mark a tampered build as safe.
CVE ALERTS
Rastin cross-references your installed versions against the public CVE database. When a vulnerability is disclosed for an app you're running, Rastin flags it on the dashboard, in the widget, and in the menu bar, before the attacker finds you.
TAMPER-EVIDENT AUDIT LOG
Every scan and every update notification is recorded in a Merkle-chained audit log. You can hand this log to a security auditor and they can verify it hasn't been edited after the fact.
PRIVATE BY DESIGN
Rastin runs entirely on your Mac. The catalogue lookups send only the bundle identifier of the app being checked (already public information) no telemetry, no tracking, no usage data. Your installed-app list never leaves your machine.
WHAT RASTIN DOES
Rastin is built for the Mac App Store. It does not install or modify any app on your Mac itself. When you decide to update, Rastin opens the App Store for App Store apps, launches the vendor's own updater for Sparkle-based apps, or opens the vendor's release page. Apple installs, Rastin tells you which install is safe.
REQUIREMENTS
• macOS 13 Ventura or later (widgets require macOS 14 Sonoma or later)
• Apple silicon or Intel
• Internet access for catalogue lookups
PERMISSIONS
On first launch Rastin asks for one permission: read access to the /Applications folder, so it can see what's installed. It never modifies anything.
LEGAL & PRIVACY
Privacy Policy: https://anthonystark.au/privacy
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, Anthony Stark, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Anthony Stark
- Size
- 1.7 MB
- Category
- Utilities
- Compatibility
Requires macOS 13.0 or later.
- Mac
Requires macOS 13.0 or later.
- Mac
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026, Anthony Stark
