Numi calculator magically combines calculations and text, and allows you to share your computations with other users. Here's how it works. Type text, or simply paste it in. For example: 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.