The interface is very nice, and a 'nicer digits' option creates (in my opinion) a better looking display. PCalc even tells you how many parentheses are presently open, which makes entering complex formulas much easier.īut beyond the feature set, PCalc is also the nicest-looking calculator app I've ever seen. In PCalc's case, it looks like it's happening because. It happened with tethering apps in the early days of the iPhone. It happened with multi-window workspace apps when the original iPad launched. It happened with app launchers-as-widgets a few weeks ago. For those who don't grok RPN, there are now parentheses buttons, as well, so that you can control the order of operations. This is far from the first time an app has been un-approved, either in whole or in part. I've used HPs for so long that I find it hard to work in anything but RPN, so that's a big selling point for me. It does everything you'd expect of a high-end calculator, including tapes, scientific functions, and even includes an RPN (Reverse Polish Notation) mode, first popularized on HP calculators. And yes, there are many, many calculator apps out there, including a couple freebies from Apple, but PCalc is one of my favorites - especially in its new Version 3 release.
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