If you are using one of the new M1 Apple Silicon Macs, you may be wondering how to tell if an app you have is optimized for Apple Silicon. There are a couple of ways to deduce this.
- Get Info: The first option is to use the “Get Info” option in the Finder. Navigate to the app’s location (usually in /Applications), click on the app, and the use Command-I. Under the “General” heading will be listing for “Kind:”, with three possible options – Application(Universal), Application(Intel), Application (Apple Silicon). The Intel and Apple Silicon options should be self explanatory. The “Universal” option means that the app is a “fat binary”, containing the code for both Intel and Apple Silicon versions. “Fat Binaries” have more coverage than an app compiled for either architectures, but they are also nearly twice the size of a standard binary.
- Activity Monitor: If the app is already running, you can open the Activity Monitor (located in /Applications/Utilities). Here you will see a list of all running applications. In the column labeled ‘Architecture’, you will see either Intel or Apple Silicon listed. Activity Monitor shows you the code that is being executed, so even if the application is a fat binary, it will only show the platform code that is currently being run.