Numi

Numi is a menu bar calculator that accepts plain English. Here's how it works. Type text, or simply paste it in. For example, you could type something like this: 50 apps * $1.99 each + 3 apps * $4.99 + Photoshop for $600. Numi gracefully adds up all the numbers for you, and displays the result on the right-hand side. Of course, it can handle more complex math than the simple example above. Either way, you don't have to rewrite what you enter -- whether it is text, numbers, or comments -- Numi automatically understands and computes what you write.