RealCalc Scientific Calculator

RealCalc Scientific Calculator Free App

Rated 4.47/5 (185,556) —  Free Android application by Quartic Software

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About RealCalc Scientific Calculator

RealCalc Scientific Calculator is Android's most popular scientific calculator. 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)
* Samsung multi-window support with drag & drop.

How to Download / Install

Download and install RealCalc Scientific Calculator version 2.3.1 on your Android device!
Downloaded 10,000,000+ times, content rating: Everyone
Android package: uk.co.nickfines.RealCalc, download RealCalc Scientific Calculator.apk

All Application Badges

Good rating
Free
downl.
Android
1.5+
Bug
buster
For everyone
Android app

App History & Updates

What's Changed
* Homescreen widget now supports RPN (RealCalc Plus only).
* New delta-percent function.
* Support for Android 6.0 Marshmallow.
* Fixed possible crash on a few devices running 5.1 (Jiayu S3, Lenovo K3 Note).
Version update RealCalc Scientific Calculator was updated to version 2.3.1
Version update RealCalc Scientific Calculator was updated to version 2.1.0
Version update RealCalc Scientific Calculator was updated to version 2.0.3
More downloads  RealCalc Scientific Calculator reached 10 000 000 - 50 000 000 downloads

What are users saying about RealCalc Scientific Calculator

Z70%
by Z####:

BEST CALCULATOR APP This app helps me perform all the calculations I make. But the only problem is that I can't find antilog of a number using this app; so I have to go on to use another source. "Adding the antilog function" would turn my rating to five stars. Otherwise, it is quite convenient to use, so a huge thumbs up :D

X70%
by X####:

The app is perfect for making just about any calculation you need, and I love that it looks like an actual calculator. However, I don't like that it doesn't display the equation you enter, it only shows the numbers, and then has top or side icons for (+ - × ÷, and brackets, powers, etc). That's the part that I dislike very much. I prefer seeing the whole equation that I'm typing in, not in parts.

Z70%
by Z####:

Great classic-style scientific calculator app. If you're looking for a good scientific calculator and are overwhelmed by the sheer number of awful calculator apps, you've come to the right place. This calculator does exactly what it says it does, and it does it well. It is also very tasteful in asking you to buy the pro version, kudos to developer(s).

W70%
by W####:

Great! Looks and works just like a dedicated, stand alone, traditional calculator. Has all the functions anyone could need. More intuitive than others I have tried - especially the default Android app which is awful - I instantly felt able to use it. Well done, Quartic.

J70%
by J####:

This is a good calculator. It does what I need it to do. I like the look of it, and I like how it doesn't give you the answer until you hit the = button. Almost every other calculator app I tried gives the answer while you're putting numbers in. They make the = button useless.

A70%
by A####:

Sometimes it's a bit confusing when the previous number is not shown when entering a new number after an operator. I think the key pads can be made smaller to make room for two rows that show previous and current numbers entered. This could be optional feature. Another optional feature I think would be helpful is immediate execution mode. For example, when you enter 9-3*2, you get 12.

Z70%
by Z####:

This is the best Android calculator. I'm an engineer and have been using it for 5 years. I've periodically gone back and tried others on the play store, but none can match. I like the addition of RPN.

R70%
by R####:

So far, very good app. My only complaint is the decimal point key is to the right of the +/- key so that it is not next to the numbers with the +/- key in the middle. How many times do I hit the +/- key when I want to type a number with a decimal...? I need a calculator to compute that! Especially problematic when typing quickly. Very annoying. Can you just swap places between the decimal point and the +/- key? A simple thing like that would make this a 5 star app!

R70%
by R####:

Good, but what a shame its button layout can't be made the same as a Casio! If only it could simulate a modern fx-82 or an older classic Casio I'd buy the Plus version immediately...

Z70%
by Z####:

Great calculator app for sure, but $3.49 is way to much. I'm a buyer at 99 cents. Wish it was named "Calculator" so it's easier to find/remember too! I hate hunting through my apps to find it.

I70%
by I####:

The best scintific calculator as app ever. I have tried a lot of math calculators and none of them are this light weight working pefectly on any phone and with a cool realistic fesign and pefectly acurate calculations. I have used this app for 4 years now and both the old and the new vesion is great. Fast relaiable and good. GREAT JOB GUYS your app should be higher listed in the math app lists.

R70%
by R####:

I got Realcalc because I wanted a good RPN calculator. How good is it? I have an iPhone 7 but will drag my old android phone with just for Realcalc. Better than as ny HP calculator I've had.

H70%
by H####:

Look no further, this is the best calculator on the market. I have had this calculator app since I bought my Droid Eris in early 2010. I've used this app on every phone I have had since then.

Z70%
by Z####:

This calculator does exactly what it's supposed to do. It resembles a real (Texas Instruments) calculator as closely as it possibly could. I love how clean and organize the interface is - just like a real calculator's look and feel. No nonsense, no ads, but all the functionality that can be expected from a calculator. I love it!

Z70%
by Z####:

So far has been the best scientific calculator I've found here. The pro version is overpriced.

C70%
by C####:

The app is perfect for making just about any calculation you need, and I love that it looks like an actual calculator. However, I don't like that it doesn't display the equation you enter, it only shows the numbers, and then has top or side icons for (+ - × ÷, and brackets, powers, etc). That's the part that I dislike very much. I prefer seeing the whole equation that I'm typing in, not in parts.

U70%
by U####:

I downloaded this for school and I have another one for those quick little things. This one is super powerful has all the features I need but my only complaint is how it keeps the decimal as far to the left as possible. I would prefer it to leave it out when there is no decimal (12 is shown as 12.000000000 which makes it a little messy) and keep is as far right as possible. Otherwise I love this one and recommend it.

U70%
by U####:

This was my go-to calc app & suddenly it refuses to work with the android split screen. It was able to, & was very handy; now unable to = uninstall. Pro-tip: don't refuse what the end user wants to do if you want to stay relevant.

U70%
by U####:

A long time ago, I knew somebody that had a hundred dollar calculator. I honestly have absolutely no idea how to use this calculator. But I know Walmart has one just like this app, but for a hundred dollars. So, I installed this app. Just for that reason. Its just a smart thing to do I guess. Ill add stuff up later...

U70%
by U####:

In 1976 I went to the college bookstore and plunked down close to a month's rent for a Sharp "Electronic Slide Rule." Back in the day, that's what we called it if it could do trig functions and logs. I loved it! And Real Calc has the same persona. Everything is so natural. It is more powerful than my old friend but that is acceptable. I have the paid version.

U70%
by U####:

In college I used a Hewlett-Packard 42S calculator that I still have on my desk at work. This doesn't have the tactile feel of those old school devices, but it's a great app if you're used to using RPN. I highly recommend it. Better yet - it's free and doesn't have annoying ads.

C70%
by C####:

As good as any of my favorite HP calculators, and that's saying a lot. Might like to customize some colors and locations and sizings one day, but this one does so much I give the free version 5 stars in the

U70%
by U####:

One of my essential applications; one of the first I download on any new device. I'm just having difficulty getting to get the -log of a number. It seems to just return an error message as you have to input a value before you can press the log button. (Never mind. I just had to put the log of the reciprocal. I feel dumb)

U70%
by U####:

I've been using this for years now and have finally upgraded to the pro version because although it's not something I use daily, it works perfectly and looks beautiful. It would be one of the first apps I'd install on a new phone and it's been off great use to me time and again. Thanks for a fantastic app.

R70%
by R####:

So the fact that you can't see your full equation is a little annoying, but no big deal, but this app has no extra permissions (as any simple calculator should) and therefore, no usless caller ID! You might ask yourself, why would a calculator have caller ID??? Tbh im just as confused as you are, but you'd be surprised to find that that exists. It's dumb I know. But this app isn't like that! It's actually good! You need a free calculator app? Get this one. Trust me.

Z70%
by Z####:

The closest to a real scientific calculator you'll ever get, probably even better. Would like to have statistical functions (average, deviation, etc.) as well. An option for financial calculator would be nice too.

U70%
by U####:

The layout was disgusting. It tok me 10 minutes to make sure there wasn't a fraction button. I would strongly advise you find a different app or buy a real calculator...

O70%
by O####:

This is a really nice Android scientific calculator. If you liked the HP-15c, you'll love this, which allows 4 levels of stack visible at once. Suggestion: touch-drag keys to get alt function, this is faster than long-press, and long-press could open other funcs , eg sin,asin,sinh,asinh, sec,asec,sinc all on one key with no 'hyp' or 'shift' needed. Also, would love to see a 'complex' mode (an HP15c feature) as part of the upgrade.

H70%
by H####:

One of the best couple of calculators after trying few dozen. I'm hesitating to purchase only because I need a way to be able to view and edit the whole expression with parentheses, operators etc. which is invaluable feature in many other calculators for even the simplest calculation.

U70%
by U####:

So far, very good app. My only complaint is the decimal point key is to the right of the +/- key so that it is not next to the numbers with the +/- key in the middle. How many times do I hit the +/- key when I want to type a number with a decimal...? I need a calculator to compute that! Especially problematic when typing quickly. Very annoying. Can you just swap places between the decimal point and the +/- key? A simple thing like that would make this a 5 star app!

U70%
by U####:

It's a good calculator, and ad-free, which is good. But the constant (literally every time I start the app) nags to upgrade to the paid app made me find an alternative.

U70%
by U####:

This is a very useful app. Instead of wondering if I have my calculator on me, I can just pull out my phone. It works just like a sole-purpose scientific calculator.

U70%
by U####:

Takes a little getting used to because of its extensive features. (It's been a while since college when I last used one of these in real life, lol). But it has a good help function. Every function you can think of, and then some.

O70%
by O####:

Just like a manual calculator,even easier to use.The thing that I find distracting at times is the vibrate feature upon tapping a certain key.

U70%
by U####:

Try cos (pi). Surprised it wasn't -1? I was too, and it makes me worry that the algorithms used for trigonometric solves in this don't adequately account for all the edge cases. It's one thing if Flappy Bird has round off errors, but a calculator shouldn't. Please look into the edge cases of all your functions a bit deeper. There's a lot of literature out there on catching them. Also check out test based development if you haven't already. A good unit test would have caught this.

U70%
by U####:

I'm doing an strophysics degree so having a good calculator on my phone is pretty important. This is not it. You are unable to see the formula you're typing in which makes it IMPOSSIBLE to find a mistake. Also the sin function is no longer accurate at 0.001 rad (pathetic) I'm actually surprised that finding the square root of a number and then squaring it back gives the correct answer. If you need a scientific calc, get something esle. If you want a simple calculator, there are still better options.

U70%
by U####:

In notifications bar ads constantly show for calculators. A calculator app shouldn't show notifications in the first place let alone spam.

U70%
by U####:

Real calc look, no fishy permission requirements. Implementing ads and nagging dropped rating to 3.

U70%
by U####:

It's exactly what it's advertised to be - a scientific calculator. All the needed functions, no ads, even a history feature which is very practical. It's the only calculator I use now.

Z70%
by Z####:

Great little calculator app to have at work. Now I have an excuse to keep the cell phone on me at all times. Lol


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Rating Distribution

RATING
4.55
185,556 users

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