Apple will reportedly unveil a genre-defining calculator app at WWDC 2024

Apple's calculator for Mac computers serves its purpose just fine, but it's reportedly getting massive updates with macOS 15 that turn it into a note-taking, currency-converting hybrid app. To start with, AppleInsider said the calculator will receive a design overhaul that swaps its number boxes with round buttons. You'll even reportedly be able to resize the calculator. If you make it bigger, the round buttons get stretched and turn pill-shaped, though they go back to their original form if you make the calculator smaller again. 

A new history tape that you can access with the click of a button will show you previous calculations, so you no longer have to note them down if you're working with a lot of data and need to see a trend or keep track of what information you've processed so far. You'll be able to see the bar whatever mode the calculator is in, even if it's in scientific or programmer mode and not just in basic. The updated app will apparently come with Notes integration, as well, allowing you to more easily create notes with mathematical notation like you could on competing products like Microsoft's OneNote. Finally, the new calculator will make it easier to work with numbers in different currencies by incorporating the conversion tool into its user interface. You no longer have to access the tool via the drop-down menu every time you want to see how much a certain amount is in another currency. 

According to AppleInsider, the company is expected to introduce these and more features for the iOS 18 and macOS 15 at Apple's Worldwide Developers' Conference that's set to take place in June this year.