My iPad isn't the cellular model, and there are times when I won't have have wifi access. Plus, every modern computing device includes a calculator app. It's baffling my 9th doesn't include one, while my iPod Touch 5 does!
Honestly, most of the time I just type the equation in Search/Spotlight as much as PCalc is great. It's easy enough to get in and out of for basic +-/x IMO.
Honestly, most of the time I just type the equation in Search/Spotlight as much as PCalc is great. It's easy enough to get in and out of for basic +-/x IMO.