RealCalc Plus

4.8
16.1K reviews
Content rating
Everyone
500K+
Downloads
Content rating
Everyone
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About this app

RealCalc Plus is the pro version of RealCalc, one of Android's most popular scientific calculators.

RealCalc Plus is designed to look and operate exactly like a real hand-held calculator. It has all the standard scientific functions plus fractions, degrees/minutes/seconds, history, memories, customizable 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 Plus is easy to use, but has full help included in the app.

RealCalc Plus includes the following features:
* Traditional algebraic or RPN operation
* Fraction calculations and conversion to/from decimal
* Degrees/minutes/seconds calculations and conversion
* 12-digit display
* Extended internal precision (32-digit)
* User-customizable unit conversions
* User-customizable constants
* 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
* Landscape mode
* Homescreen widget (now with RPN support)
* Configurable digit grouping and decimal point
* Three RPN styles: direct-entry (classic RealCalc mode), buffered-entry, or XYZT rolling stack
* Multi-window support with drag & drop
* External keyboard support
* Full built-in help
Updated on
Aug 22, 2025

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
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No data collected
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Ratings and reviews

4.8
14.8K reviews
Chris F
May 19, 2026
I cannot ever remember paying for an app. I had a Mot Razr and used the free version for years, (which didnt pop up adverts much btw). When I finally got a new Samsung S8 in Dec 2017, this was one of the first apps I installed...so useful. Today I finally decided to get the paid version. Thank you for making an app, (including the free version) that is useful and well designed. Keep up the good work.
8 people found this review helpful
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A Google user
April 13, 2019
Of all the software calculators I have used over the past 22 years, RealCalc is the best by a wide margin. Transitions between number bases is easy; important to me because I work in hexadecimal all day. Yet it's a strong accounting calculator when I need that; not to mention fraction calculations when I'm in the shop. Settings give it flexibility beyond my usage needs. I bought the Plus version when I saw how much I was using it and have been completely satisfied.
57 people found this review helpful
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Ben Sadler
November 3, 2022
I just now purchased the upgrade after using the free version for close to a decade -- and I use it every day. I didn't even care about or pay $3.49 for what the upgrade offers, but rather felt the usefulness I've received from the free version all these years finally deserved some remuneration. My experience (or, at least with the free version) is that it's a simple, standard calculator, but it works *really well*. Brava Quartic. Looking forward to seeing what the upgrade can do.
36 people found this review helpful
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What’s new

Updated for Android 16.