Calculator app has been around in macOS forever. Here’s how to use its four modes in macOS Sequoia.
macOS’s Calculator app.
Apple’s Calculator app lives in the /Applications folder at the root of your Startup Disk. One of the simplest of all the macOS apps, it was also one of the first utilities shipped with Mac OS X when it was released in 2000.
In fact, the original Mac also shipped with a very simple Calculator app as a desk accessory.