PCalc is the powerful choice for scientists, engineers, students, programmers, or indeed anybody looking for a feature rich calculator. It includes an optional RPN mode and multi-line display, a choice of button layouts, an extensive set of unit conversions and constants, a paper tape, multiple undo and redo, engineering and scientific notation, as well as support for hexadecimal, octal, and binary calculations.PCalc Lite is a fully functional and free taste of our very popular scientific calculator. It includes an optional RPN mode, multiple undo and redo, unit conversions and constants, as well as two stylish themes and our highly praised design. A great choice for your new iPad!
If you like what you see, the full version has many more settings and themes, a paper tape, engineering and scientific notation, and full support for hexadecimal, octal, and binary calculations. You can also now purchase extra features directly from inside PCalc Lite. Buy them individually, or buy everything.
Includes an Apple Watch app, so you can calculate on your wrist!
Improved support for iOS 12 and watchOS 5.
Added full support for Apple Watch Series 4.
Added initial support for x-callback-url interapplication communication.
With the "Engineer Pack" or "Programmer Pack" installed:
Added the ability to create custom buttons that open a URL. They can run Siri Shortcuts, or talk to any app that supports the x-callback-url protocol.
Use [x-register], [y-register], or [m-register] in URLs and that text will be replaced by the appropriate value when the URL is opened.
If you set the x-success parameter for any x-callback-url to "pcalc://x-callback-url/set" (suitably encoded) it will set the display with the result.
Set the x-error parameter for any x-callback-url to "pcalc://x-callback-url/error" and it will flash "Error" on the display if there is a problem.
With the "Conversion Pack" installed:
Fixed a problem with not all conversions not being available in Siri Shortcuts.
Ratings and Reviews
iPhone X, iOS 11.x
Orders of magnitude better than the stock calculator and so many others. The option to add only the additional features that one requires make for an affordable, intuitive experience. Look no further if you want an app that is maintained consistently and always works with the latest devices (even the free version without any additional features unlocked) because PCalc Lite delivers. These are the developers that we should support.
I Purchased PCalc and was immediately impressed. Honestly, this app has no peer. Fully customizable, with deep and thorough functionality, it’s hard to imagine anything could be better. After trying the Lite version I jumped and purchase the additional packs and never looked back. Also, I had reason to contact PCalc with a question and they replied immediately. I was totally impressed. Thank you for a great app PCalc people!
Engineering decimal places
Overall, an excellent calculator app. Will award that 5th star when the Engineering Decimal Places is fixed.
Correct implementation will show the same number of significant digits as specified. The flawed implementation controls only digits after the decimal. Thus the significant digits shown is different depending on value. Very annoying. (See HP for correct approach.)
If this is all that’s wrong, then these folks have produced a top quality product. Hope y’all fix it!
- TLA Systems Ltd.
- 99.2 MB
- Requires iOS 9.0 or later. Compatible with iPhone, iPad, and iPod touch.
- Age Rating
- Rated 4+
- © 1992 - 2018 James Thomson
- In-App Purchases
- Conversion Pack $0.99
- Complete Pack $9.99
- Multiple Line Pack $0.99
Challenge friends and check leaderboards and achievements.
With Family Sharing set up, up to six family members can use this app.