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BlockBlock vs Santa: catalog facts
BlockBlock	Santa
Free Free, with source code published on GitHub.	Free Free to download from the public GitHub repository.
macOS	macOS
Real-time alerts for new launch items and other persistence Built on Apple's Endpoint Security Framework	Allows or blocks executables on macOS Also covers file access authorization
macOS only, version 10.15 or later Requires Full Disk Access and admin authorization	macOS only Aimed at managed fleets, so setup takes administrator effort
Downloadable app	Downloadable app
Open source	Closed source
License not stated	License not stated
No account needed	No account needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 23, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.