1. Trash-first safety
DiskCleaner is built around a review-first workflow. You see what was found before anything moves, and cleanup actions are designed to go through macOS Trash instead of permanent deletion. That means removed items remain recoverable and cleanup stays visible rather than hidden behind a one-click black box.
2. Privacy and network behavior
DiskCleaner is positioned as a local-first utility. Cleanup does not depend on creating an account, and the product messaging is built around keeping scanning and cleaning on your Mac rather than turning storage cleanup into a cloud service. Privacy matters most when a utility can inspect thousands of files, so the standard here is simple: explain what the app reads, explain what it avoids, and keep that scope narrow.
3. Apple notarization and Gatekeeper
DiskCleaner is presented as Apple-notarized software that passes Gatekeeper. For Mac users, that matters because notarization is one of the clearest trust signals available for independent software distribution. As new builds ship, this page will continue to be the place where release and trust-related status is kept clear and easy to verify.
4. Scan-performance methodology
Performance claims are most useful when they are repeatable. Scan timing depends on the Mac model, macOS version, storage condition, and the amount of cache or developer data on disk. When DiskCleaner publishes scan-speed guidance, the goal is to describe the kind of workload behind the number so users understand what “fast” means in practice. For practical storage scenarios, see our guides on how to free up storage on Mac, what System Data on Mac means, and deleting Xcode DerivedData.
5. What DiskCleaner does not touch
Trust is not only about what a cleaner removes. It is also about what it refuses to touch. DiskCleaner is designed to stay away from personal documents, passwords, and protected system locations, and that boundary matters just as much as the cleanup features themselves.
6. Technical security documentation
For readers who want a more technical summary of DiskCleaner's security posture and disclosure path, the repository also includes a dedicated SECURITY.md document.