RealCalc Scientific Calculator

Quartic Software

About this app

RealCalc Scientific Calculator is one of Android's most popular scientific calculators. It has over 20 million downloads and more than 100,000 5* reviews.

RealCalc is designed to look and operate exactly like a real hand-held calculator. It has all the standard scientific functions plus history, memories, unit conversions and constants. You can choose from a number of display styles and formats. It also supports binary, octal and hexadecimal calculations and has an optional RPN mode. RealCalc is easy to use, but has full help included in the app.

If you like RealCalc, the pro version RealCalc Plus has lots of extra features including fractions, degrees/minutes/seconds, customizable conversions and constants, landscape mode, a home-screen widget, a 12-digit display and greater internal precision. Purchasing RealCalc Plus will also help to support further development. Just search for RealCalc Plus or follow the upgrade link in the app.

RealCalc Scientific Calculator includes the following features:
* Traditional algebraic or RPN operation
* Unit conversions
* Physical constants table
* Percentages
* Result history
* 10 memories
* Binary, octal, and hexadecimal (can be enabled in Settings)
* Trig functions in degrees, radians or grads
* Scientific, engineering and fixed-point display modes
* 7-segment, dot-matrix or standard font display
* Configurable digit grouping and decimal point
* External keyboard support
* Full built-in help

RealCalc Plus contains all these features, plus:
* Fraction calculations and conversion to/from decimal
* Degrees/minutes/seconds calculations and conversion
* Landscape mode
* Homescreen widget (now with RPN support)
* 12-digit display
* Extended internal precision (32-digit)
* User-customizable unit conversions and constants
* New RPN styles (buffered-entry, XYZT rolling stack)
* Multi-window support with drag & drop.

Ratings and reviews

So long as you aren't expecting it as something that it isn't, then this is a great app/calculator. And what I mean by that is that this is - strictly - a scientific calculator - so no multi-line displays or super fancy functionality or anything like that - but that it fulfills its function extraordinarily. This thing is basically a well and cleanly executed scientific calculator on a phone - equivalent to the act of going out to a store and getting a good scientific calculator. You should get this app simply so that you can have a simple and powerful calculator on you at all times in case you're ever without an actual calculator but need one.

Have had this app for YEARS. Better than any stock calculator, easier to use and about to buy the pro version as well.

Been using this app since i shifted to using smart phones. Love the retro look. Highly recommended. Free and very functional. Nags for upgrade ain't intrusive and doesnt interfere w/ tasks. Never encountered an issue until now: after migrating to another phone, the interface didn't look right (colors are off, the "." button is white, & dots of the "÷" button are black) on dark mode so I'll have to knock down a star. Is ok if phone is not in dark mode though. Still works fine in any case.

What's new

* Updated for Android 14.