Calc Zero—the calculator re-imagined for iPhone


@jmartellaro wrote up a great review of Calc Zero over at iPodObserver.

Designed for iPhone
We love the iPhone, and we want Calc Zero to feel like it belongs on your phone. Familiar iPhone user interface elements provide easy access to many useful functions, while avoiding "button overload." 

Handy Unit Converter
With Calc Zero, you can speedily convert and perform math operations on almost 150 units. The most commonly used units (feet, inches, meters, liters, cups, tablespoons, etc.) are always close at hand, with less common units only a couple more touches away.

Full-featured Calculator
We didn't skimp on Calc Zero's basic calculator functionality. All of the most common scientific calculator functions are supported. 

Equals Key is Optional
Calc Zero optionally supports RPN for those who prefer it.

Innovative User Interface
Custom pop-up key labels give you the confidence to enter numbers and operators quickly and accurately. Swipe gestures provide easy access to parentheses and other useful functions.


Satisfaction Guarantee:

There's a lot of dreck in the App store, so we understand if you're hesitant to cough up your hard-earned cash. But we believe Calc Zero offers good value, and we think you should be able to try it out without fear of getting ripped off.

Please check out Calc Zero's free little brother: Calc Zero Lite. It will give you a feel for how Calc Zero works, but with just a few different modes to play with.

Check out Mona's comments #28/29 over at PixelBits

I am blown away by the components, functionality, and the ease of use of the various functions.

The die calculations are pretty neat too – and because I travel a lot, the currency converter is a definite must have.

[T]his seems like an extremely well thought out, intuitive app WELL worth the 99cents!!

  • Scientific
  • Trig
  • Length
  • Area
  • Volume
  • Cooking
  • Weight
  • Speed
  • Time
  • Currency (new!)
  • Dice

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