But you should not judge an app based on these attributes. They make the app seem amazing with an impressive set of features to attract you. You'll see an overview of your space used by different type of files.Īll cleaning utilities use carefully designed marketing tactics to sell you their paid apps. To check your remaining disk space, open Apple menu > About This Mac and click Storage. You'll also notice symptoms like application hangs, crashes, and even kernel panics.Ī good rule of thumb is to keep free space of at least 10-15 percent of your startup drive or twice the amount of RAM installed whichever is larger.

When your disk gets nearly full, your system performance may deteriorate sharply. MacOS requires a certain amount of breathing room for temporary files, virtual memory, application support-related data, and more. We'll show you what factors you should keep in mind before considering them. You should exercise some skepticism and caution when dealing with these. They also supposedly remove remnants of uninstalled apps, fix startup issues, correct disk problems, and more.Īlthough maintenance apps are useful, they can also harm your Mac if used carelessly. These include freeing up disk space by removing caches, logs, and other unneeded files. Many third-party utilities for macOS claim to offer you a quick and easy way to perform a variety of maintenance tasks.