Display and keyboard very readable thanks to good contrast and choice of colors (esp. Tavern theme). In general a solid, very usable set of features What a pity that absence of the expression editor prevents this from being one of the very best apps of its kind.
This continues to be my favorite scientific calculator application. It is splendidly well designed. It's operation is very intuitive and easy. The more I use it, the more I appreciate how well designed it is. One of the hallmarks of a superior software application is that, over time, the user comes to appreciate it more and more.
This can't do parentheses in equations? SO disappointed. It should be able to handle this equation: 6/2(2+1)=. All of my scientific calculators as well as realcalc allows you to use a parentheses this way. Calctastic does not. In fact, the parenthesis buttons are pretty useless. If you type (3+2) and type another number it gives you the answer of 5 and moves on to your next equation. Wow. Just, wow. A scientific calculator should be able to handle simply 9(5) and get 45. You may as well remove the parentheses from the program if they aren't going to work like every scientific calculator on the planet. Seriously.
Great app. But I really wish there was an option for showing hex, dec and bin at the same time on my phone. It has a 1080x1920 display after all. I can live with smaller digits and keyboard if necessary...
Best calculator I have seen so far - does everything I need and with a nice feel. Also have been missing RPN so much since I gave up on my old HP calculator many years ago - so easy to getting used to. And I can see that it has hundreds of features that I have not even touched upon yet - what a great tool ^_^
Good stuff ! Works perfectly as designed,like a charm.Excellent UI+most elegant calc skins I have ever seen.Some suggestions:needs scientific function programming and graphing modes to be a full-featured calculator(matrix entry and linear-algebra features would be great).Also, onboard-installed help would be more convenient than the existing web-based.
More than 100 Math, Scientific, Business, Financial Calculators & Converters
Excellent scientific calculator with expressions, fractions, repeating decimals.