It’s not quite as simple as tapping five times four on a familiar keypad, but Numi is more powerful and versatile than any traditional calculator app I’ve ever used. It’s lightweight enough to rest in the menu bar or dock, but it feels somewhat like a freeform version of Numbers. For example, I was able to track my expenses for a recent family vacation and visualize not just how much I had spent, but what I bought and whether my available cash had been depleted. I can only imagine how helpful it would have been in my college calculus course.
If you want more features, try Soulver.
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The calculator doesn’t just do simple operations; it also solves more complex functions such as arithmetic and trigonometry problems.
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Soulver has all the standard mathematical functions built-in, which is perfect for students doing trigonometry.