How To Check What Ios I Have On Mac


As a Mac user, it’s essential to know which version of macOS you’re running to ensure compatibility with software and hardware. Let’s dive into how to check the version of macOS (previously known as Mac OS X) on your Mac.

Using Apple Menu

One of the easiest ways to check your macOS version is by clicking on the Apple logo in the top-left corner of your screen. From the drop-down menu, select “About This Mac.” A window will pop up, displaying the macOS version, such as “macOS Catalina” or “macOS Big Sur,” along with the version number.

Checking in System Information

For a more detailed overview, I often use the System Information app. You can access it by clicking on the Apple logo, selecting “About This Mac,” and then clicking on the “System Report” button. In the System Information window, you can find the macOS version under “Software” in the sidebar.

Terminal Command

If you’re comfortable with the command line, the “sw_vers” command in Terminal provides a quick way to check your macOS version. Simply open the Terminal app (located in Applications > Utilities), type sw_vers, and hit Enter. The output will display your macOS version and build details.

Additional Resources

For those interested in exploring more advanced methods, Apple’s developer documentation provides in-depth details on how to programmatically retrieve macOS version information using various programming languages.


Knowing which macOS version your Mac is running can help you troubleshoot issues, ensure compatibility with software updates, and take advantage of the latest features. Whether you prefer the simplicity of the Apple menu, the detailed information from System Information, or the efficiency of Terminal commands, checking your macOS version is a straightforward process that can provide valuable insights into your system.