For James Hollender's EZeeCalc app, the subtitle reads, "A Simple, Yet Powerful, Calculator for the Rest of Us!" So, what could possibly be that different about this calculator? For starters, this one helps correct your mistakes. Sure, some calculators have provided an Undo key ... but how many have provided a Redo key as well? Some also provide a "paper tape" to see what you've done. This one actually lets you re-capture values from any previous calculation. And that's just the beginning.
Undo/Redo: The Undo/Redo feature not only works within the current value, it also works throughout the entire calculation anywhere from the beginning to the end, just before hitting Equals.
List of Calculations: EZeeCalc's equivalent of a "paper tape" is a "film roll" listing up to the last 1,000 calculations, from which any one can be selected to retrieve the calculation, result or neither; and optionally any of the three memory values at the time. It also provides allowances to truncate the list at that calculation or the following one if desired. When not in use the badge number on the EZeeCalc icon indicates how many calculations are currently saved.
Remember Place: Being interrupted in the middle of a calculation is no problem since EZeeCalc remembers all aspects of the current calculation. When started up again, the user is asked whether to continue the current calculation or to start fresh.
Few Buttons: EzeeCalc doesn't have a lot of extra buttons, just the basics on the keyboard. Pressing the Entry or any one of the Memory fields brings up a list of simple equations to change the value of the field ... anything from making the field = 0; or to add, subtract, multiply or divide between fields. The Entry field can even be made equal to the sum of M1 + M2 + M3, or all three can be added to the current value. The keys are also color coded in groups by functionality.
Percent of Key: The traditional "%" key has been replaced with a "% of" key to make it extremely clear how it works. This makes calculating a tip extremely simple, e.g., 18 % of 25.60 = 4.61.
Teach Kids: During calculations, EZeeCalc only allows buttons to be pressed that are appropriate. This is great for teaching youngsters how to use a calculator. Even the Divide key is disabled to prevent dividing by zero.
Left-Handed Keyboard Option: Over the years there have been a few mechanical calculators for left-handed users. EZeeCalc allows switching between left- and right-handed versions. For foreign users, an option allows switching commas with periods.
No Scientific Notation: Although up to 15 digits are maintained for calculations, results are allowed to exceed this limit, at which time EZeeCalc continues to display values, but without using scientific notation.
On-Line Help: On-line help is provided to assist in more fully understanding all the features of the app.
Two Versions and Pricing: EZeeCalc is available in two full-featured versions, one for the iPhone and iPod touch; and EZeeCalc XL for the iPad, which includes enhanced graphics and operates in both portrait and landscape modes, is a "Big Button Calculator" with a great look and feel. Introductory pricing for either version is only $1.99 USD (or equivalent amount in other currencies) and can be found in the Utilities category. Promo codes are available for qualified reviewers. Please specify the website or blog you represent when making your request.