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Easy Calculator

3.8 out of 5 stars 113 ratings
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Easy Calculator is a simple and easy to use calculator for your Kindle. Whether you are calculating your restaurant tip, adding your recent expenses or just checking your math, Easy Calculator will always be traveling with you.

Specifically designed for the Kindle, Easy Calculator features all the basic operations such as addition, subtraction, multiplication, and division, as well as percentage, square root, memory functions and more.

Our calculator is built around an innovative matching keyboard design which associates each key of the calculator with a key on the keyboard. This allows fast and easy keyboard input for all your calculations.

Easy Calculator is an essential tool for Kindle.
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This title is only available on select devices and the latest version of the Kindle app. Please refer to the supported device list before purchase. Available on these devices

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Kindle E-Readers

  • Kindle Scribe, 1st generation (2024 release)
  • Kindle Touch
  • All New Kindle E-reader (11th Generation)
  • Kindle Scribe (1st Generation)
  • Kindle (11th Generation, 2024 Release)
  • Kindle Paperwhite (12th Generation)

Free Kindle Reading Apps

  • Kindle for Mac

Product details

  • Date First Available ‏ : ‎ January 20, 2011
  • Manufacturer ‏ : ‎ Mobigloo
  • ASIN ‏ : ‎ B004JOKW5G
  • Customer Reviews:
    3.8 out of 5 stars 113 ratings

Customer reviews

3.8 out of 5 stars
113 global ratings

Customers say

Customers find the calculator app performs basic functions well and is easy to use, with one mentioning it works great for checking kids' math. They consider it handy to have around and worth the price, with one noting it's better than the one on their cell phone. The app receives positive feedback for its accuracy, with one customer mentioning it can handle complicated calculations, though some find it too slow for business use. The numbering system receives mixed reviews.

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FunctionalityEase of useCalculatorUseabilityValue for moneyCalculus accuracyNumberingSlackness
29 customers mention "Functionality"23 positive6 negative

Customers find that the calculator works as well as any other device and meets their basic needs, with one customer noting that all required mathematical functions are included.

"works great. nicely implemented qwerty equivalent to number pad with good sized on screen cheat sheet and calculatiom area. very useful." Read more

"worked very good" Read more

"...You get ALL the functions of a typical calculator including calculating percentage, scientific notation, square roots, and storing in memory...." Read more

"...or physics. Nothing will help physics ...." Read more

28 customers mention "Ease of use"22 positive6 negative

Customers find the calculator easy to use, describing it as a simple application that is convenient to access.

"Easy Calculator works fine and is easy to use. I just have no use for it anymore since I got my iPhone." Read more

"...Works quite well. Easy Calculator (this page) by Mobigloo is an alternative to the competing program Calculator by 7..." Read more

"I love this calculator. It's very easy to use and the display is nice and clear...." Read more

"It's okay - calculations don't flow easily but could just need to use it more and practice the steps suggested." Read more

17 customers mention "Calculator"15 positive2 negative

Customers find this calculator app to be good, with one customer noting it's better than the one on their cell phone.

"good calculator" Read more

"...Easier for us to pay .99 and be done with it. That said, this is a nice calculator. I especially like having the running tape...." Read more

"...it on Kindle touch, big display, lots of functions, way better than the one on my cell phone, and so easy to use." Read more

"If you're not a math genius (like my husband), this is a great little app for your Kindle...." Read more

13 customers mention "Useability"13 positive0 negative

Customers find the calculator handy to have around, with one mentioning it helps with homework.

"...It is very useful and I use it a lot. It has small lines under each button that blink when you press the key, so I know I pressed it...." Read more

"...I am very happy to have found this useful app! Highly Recommended! CFH" Read more

"...Always handy while reading the Kindle and saves me from having to get up out of my easy chair to start looking for my other calculator I left in my..." Read more

"This is nice to have with me at crops when I am trying to figure out measurements for my craft items." Read more

13 customers mention "Value for money"13 positive0 negative

Customers find the calculator worth its price.

"The calculator was cheap, works fine, and has all the functions for my simple needs...." Read more

"Simple calculator. Big buttons. Easy to use. Great price. I needed a simple calculator and this works well...." Read more

"...with this calculator for a few minutes, I realized that this was well worth my $1 but still think it should be free and/or included with the..." Read more

"a great deal; very handy to have!! I use it often. I use my Kindle all the time, have it with me, and having a calculator on hand is a plus!!" Read more

6 customers mention "Calculus accuracy"5 positive1 negative

Customers appreciate the calculator's accuracy, with one mentioning its ability to handle complex calculations.

"...You get ALL the functions of a typical calculator including calculating percentage, scientific notation, square roots, and storing in memory...." Read more

"User friendly and does the simple calculations necessary while reading financial or technical pages on the Kindle...." Read more

"Easy Calculator is very Easy to use. I like it. Can even do very compicated calcs. nice to have it on the Kindle...." Read more

"...to number pad with good sized on screen cheat sheet and calculatiom area. very useful." Read more

7 customers mention "Numbering"4 positive3 negative

Customers have mixed opinions about the calculator's numbering system, with one customer appreciating how it displays numbers across the bottom, while another notes that it doesn't follow Kindle's default numbering system.

"Just bought and downloaded this for my Kindle Touch. It displays numbers across the bottom, but there are no other buttons (like add/subtract etc)...." Read more

"...The numbers are just lined up 1 to 10 and really slows you down. A very odd decision for an otherwise workable calculator...." Read more

"...It also keeps a running tab of the numbers you have typed in so that you can check for mistakes. A great item for those of us on the go!" Read more

"...not know if it is the screen or the app, but sometimes it is hard to get the numbers in...." Read more

6 customers mention "Slackness"1 positive5 negative

Customers find the calculator too slow for business use.

"...MUCH easier then the "hack" that they recommend. It's a little slow in giving you results compared to your pocket calculator but that is to be..." Read more

"The application is a little time consuming to use but it is okay. I would rather have it than not. I would buy it again." Read more

"...I use it for personal use. Too slow for business." Read more

"...The numbers are just lined up 1 to 10 and really slows you down. A very odd decision for an otherwise workable calculator...." Read more

Top reviews from the United States

  • Ed Pegg Jr
    5.0 out of 5 stars Works on Kindle Touch. Currently the best calculator for Kindle Keyboard
    Reviewed in the United States on May 29, 2011
    Verified Purchase
    EDIT (Nov 30 2011) -- This is one of the few programs I could load onto a Kindle Touch. Works quite well.

    Easy Calculator (this page) by Mobigloo is an alternative to the competing program Calculator by 7 Dragons, for calculators on the Kindle. I decided to check it out both.

    You'll likely do better ignoring any written reviews, and looking at the screenshots that are provided for each program. In those, you'll be able to see the layouts that are provide.

    This program Easy Calculator
    PRO - Multiple lines of history provided.
    PRO - Follows Kindle numbering.
    PRO - A (add) S (subtract) X (Times)
    CON - No trig functions.

    The competing program Calculator
    PRO - Has Sin, Con, Tan, x^y
    CON - Only one line of output and tracking.
    CON - A history exists, but it's on a separate page, and multiple clicks are needed to leave it.
    CON - does not follow default Kindle numbers.
    CON - Placement of function keys non-intuitive

    For the moment, I'll give the nod to Easy Calculator (this program). I like the layout and the onscreen history better.

    But look at the screenshots, and make your own decision for which layout you prefer. Note that Kindle also has a built in calculator, but it's very, very basic. If you want help with balancing a checkbook, this is the one to get.
    10 people found this helpful
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  • Andrew P.
    4.0 out of 5 stars It's good, but not extraordinary
    Reviewed in the United States on January 27, 2011
    Verified Purchase
    After playing with this calculator for a few minutes, I realized that this was well worth my $1 but still think it should be free and/or included with the Kindle.

    I'm an engineering student which usually means that I use a graphing calculator, but once in awhile I have to revert to something less complicated. I usually have trouble with simple calculators because I'm not used to working with them. It's kind of like stepping down from a Windows machine to a Mac, it's a little bit different in operation and a lot less useful. =) Sorry, that opportunity was to good to pass up...

    Anyways, I usually have a little trouble using unfamiliar calculators and this one was no different but the learning curve was shallow, and I had it mastered in just a few minutes.

    One essential function it lacks is a power key. It almost seems ridiculous because if it has a root key, why should it not have a power key? If I want to raise 4 to the 8 power, I do NOT want to type 4x4x4x4.... especially on buttons that aren't labeled with 4's and x's.

    Again, it's good but not extraordinary. I give it a B.
    7 people found this helpful
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  • JP
    3.0 out of 5 stars Easy Calculator not all that easy
    Reviewed in the United States on March 24, 2013
    Verified Purchase
    Necessity is having to convert letters to numbers, but thats inevitable. Otherwise, it shows what numbers you have used so a good review
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  • KAREN
    1.0 out of 5 stars Doesn't Work on my Kindle Paperwhite
    Reviewed in the United States on February 15, 2014
    Verified Purchase
    I did not see anything on Amazon that said what Kindles this was compatible with, and after
    purchasing and installing, when I tried to fun it, it said it was not compatible with the
    Paperwhite. I really need a calculator on that device. I don't like to have to carry a
    calculator in my purse also. I hope someone will create a calculator that works on it.
    One person found this helpful
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  • R. Hellinga
    2.0 out of 5 stars Smart phone is really easier
    Reviewed in the United States on October 19, 2013
    Verified Purchase
    I thought it would be practical to have some kind of calculator at hand, but every smart phone has one, for free, and they really work much better.
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  • AncientStorm
    5.0 out of 5 stars Very useful addition to your Kindle
    Reviewed in the United States on January 23, 2011
    Verified Purchase
    The person who gave this little application a bad ranking may be a geek and can hack his Kindle. There is a way to do that. But most of us are not so gifted nor do we want to be. Easier for us to pay .99 and be done with it. That said, this is a nice calculator. I especially like having the running tape. That's better than any pocket calculator. In fact, one of the bad features to the otherwise handy little pocket calculators is that there is no running tape, so you can easily lose where you're at if you have a lot of figures.

    It takes a bit of practice to get proficient at this calculator. But it's really nice. It's the size of the screen. So just about anyone can easily see it and work with it. It's a fully functional financial calculator. I find it useful when I'm looking up a price for a prospective client and then need to figure the bottom line.

    The one thing I'd like to see is a way to make it pop up. Also, perhaps sometime Amazon will add a number pad to the Kindle. But that might be getting away from the way the Kindle was made to be used, to read books.

    I read a lot of personal financial books and books on economics and often wish I had a calculator on the Kindle. So I expect I'll get a lot of use out of this.

    I initially gave it four stars because it doesn't pop up. But after thinking about it, I figured that might not be a need of lots of people. Admittedly, it is somewhat important to me. I know I have a popup calculator on my Palm device.

    So, when you're reading a book and need to figure something, you have to get out of the book and into the calculator and then back. But I know that it might not be possible to develop an app for the Kindle that does that and so it's not fair to judge it based on that criteria.

    Otherwise, this is an excellent tool and I recommend it.

    -- Susanna K. Hutcheson
    56 people found this helpful
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  • I Tell It Like It Is
    4.0 out of 5 stars Very Nice
    Reviewed in the United States on January 1, 2012
    Verified Purchase
    At first I was very skeptical of how simple this calculator might be, but I decided to purchase the app. It is very useful and I use it a lot. It has small lines under each button that blink when you press the key, so I know I pressed it.
    Overall, I think it is a very good product and I hope you will buy it.
    One person found this helpful
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