Monitors Mac persistence locations and alerts you when software installs itself to run automatically
BlockBlock provides continual protection by monitoring persistence locations on a Mac. Malware often installs itself persistently so that it runs automatically after a restart or login, and BlockBlock watches the common places where that can happen.
When a new persistent item is added, it shows an alert so you can decide whether to allow or block it. It is for Mac users who want to know what installs itself in the background.
Description adapted from the project README.
Community project. Help and bug reports go to the maintainers on GitHub; AppsXi does not provide support for this app.
GNU GPL 3.0
Use and change it freely; anything built from it must be shared under the same license, with its source.
Read the full licenseAppsXi checks every version before it is listed.
Signed by Objective-See, LLC (VBG97UB4TA)
Apple Developer ID team VBG97UB4TA
Notarized by Apple
Hardened Runtime on
File matches the hash GitHub published
SHA-256 7e5a332a4da6a22e8b494418c3cac241d24b43176c8bfc4bb2ef8bdc640bd4c7
No malware found
ClamAV 1.5.4 on Oct 13, 2026
Install and behavior test in a virtual machine: not run yet
Coming soon for all listings.
Checked Oct 13, 2026 · Mac
ZIP · 5.0 MB
Yes. BlockBlock is free and open source under the GNU GPL 3.0. AppsXi lists the maintainers' official release and does not charge for it.
AppsXi downloads every version of BlockBlock from the maintainers' official GitHub release and checks it before it is listed. For version 2.5.2 (checked Oct 13, 2026), the Mac download is signed by its developer and notarized by Apple, each file matches the checksum GitHub publishes for the release, byte for byte and a malware scan found nothing.
Yes. BlockBlock has a native Apple silicon build, and it runs on Intel Macs too.
BlockBlock needs macOS 10.15 or later.
BlockBlock is an open source project by Objective-See Foundation on GitHub (objective-see/BlockBlock). Help and bug reports go to its maintainers there.
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