This is especially helpful for those doing bookkeeping or any kind of itemization where you want to go back and see the entire strand of numbers. One of its most powerful features is the tape, which keeps a running tally of calculations. Read our full review of PCalc.ĭigits lets you view and edit a tape to keep track of calculations.ĭigits ($4) is an ideal calculator replacement for day-to-day math. If you want to extend what is available with PCalc to the desktop, a version is available in the Mac App Store, also $10. If you need the higher-level calculation required for engineering or other advanced levels of math it is definitely the one to get. It has a variety of different layouts to match your specific use needs, whether it is for regular calculations or for taking to the engineering lab.Ī free version is there to try it out, with $10 the price for the full edition.