MyScript Calculator - Best Android, iOS apps from January 2013
Doing anything more than simple arithmetic on a smartphone can be as frustrating as advanced calculus. Sure, it's easy to access basic addition, subtraction and multiplication, but more advanced functions and formulas require hunting around the device for the corresponding symbols. MyScript Calculator eliminates the hassle once and for all, eschewing keyboard-based calculator interfaces in favor of the user's own handwriting.
MyScript Calculator converts numerals and symbols drawn onto the iOS touchscreen into digital text, calculating answers in real time. In addition to basic mathematical operations, the app supports percentages, square roots, exponentials, brackets, trigonometry, logarithms, constants and a whole lot of other stuff I forgot the day I graduated from high school. Whatever you can do on paper, you also can do on MyScript Calculator--you can even scratch out numbers and symbols if you make a mistake. It's exponentially more natural and user-friendly than conventional calculator apps, and best of all, it's free. You don't need to be a math whiz to know that's a good deal.