MoreCalculator

If you're looking for a scientific calculator that allows you to enter formulas and calculations in a natural way, you should definitely try MoreCalculator. One of its coolest features is the ability to support unlimited numbers of variables and functions, making it a powerful tool for any user.

Unlike Apple's limited calculator, MoreCalculator offers a range of benefits that can make your life easier. With a more intuitive interface, you can store and access unlimited numbers of functions and variables quickly and easily. Plus, you can even add your own to the mix.

But what really sets MoreCalculator apart from the competition is its Service integration. Thanks to this feature, you can use the expression evaluation engine from any application that supports Services. So, whether you're using "TextEdit" or another similar application, you can quickly calculate your expression by accessing the Services menu or using the Shift+Command+E key combination.

Of course, there are some limitations to the software, including a 30-day trial. However, if you need a powerful and easy-to-use scientific calculator, then MoreCalculator comes highly recommended.