Kalkulilo (scientific calculator)

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  • Last update: 4 years ago
  • Version: 4.5
  • Size: 10.0 MB
  • Compatibility: Requires iOS 7.1 or later. Compatible with iPhone, iPad, and iPod touch.
  • Author: Alexander Clauss
  • Content rating: Rated 4+
  • Languages: English, German
  • In-App Purchases:
  • Remove Ads $0.99
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Kalkulilo (scientific calculator) Review

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Kalkulilo (scientific calculator) Review

Kalkulilo is a comfortable calculator program and offers several different modes.

- The scientific mode offers all the usual functions and operations like the basic arithmetical operations, power, logarithm, roots, trigonometry etc.

- The bit/integer mode offers logical operations (AND, OR, XOR, >>, etc.) on bit level. All values can be displayed as binary, octal, decimal or hexadecimal numbers. Calculations can be done in 8, 16 32 or 64 bits.

- In the statistics mode you can create a sample by adding several values and then calculate mean, median, quantil values, variance, standard deviation, range etc.

- Trigonometry mode provides lots of trigonometric functions

- The base/radix mode allows you to do calculations with numbers of base 2 to base 36

- The Time mode lets you directly work with time values (hours, minutes seconds)

- A simple calculator is also included, with just the basic operators and large buttons.

Colorized keys will help to distinguish between the different categories of the functions and operations. The user interface (design, colors) can be customized.


The App also includes a calculator widget for the notification center and a calculator App for the Apple Watch.

Note: This app uses ads to generate revenue to cover the costs for developement and support, and to be able to provide the App for free. But you can get rid of the ads permanently for a small fee via In-App purchase.

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Rating Distribution


3.3
(262 426)
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3 Comments


  • D
    Dcm684
    iTunes
    The previous version of the calculator was all that I needed as an engineer/programmer. It had all of the functionality that was needed and Iwas content with it not being updated any more. That said the new version adds iAds and changes the color scheme. I understand the desire to get paid for your work as you should be. Unfortunately the implemetation of it in this program is poor. Evening moving the ads to the bottom of the screen would help. I liked the amount of space afforded to the display (the non-keypad part of the calculator) in previous versions. It seems that this is where all of the space was taken from for the ad. A splash screen with an ad would be better than and iAd banner. Now the other problem is the color scheme. It looks like an engineer or programmer came up with it. It may be functional but it is not appealing. The old color scheme was much better.I know I can change the colors for my buttons, but it would be better if the original scheme was default. As a side note how in demand was this feature? I know it is a free app and I can go elsewhere. That is exactly what I will be doing.
  • j
    jprose
    iTunes
    I have had this calculator for some time now. Various "modes" are: * Simple * Scientific * Bit/Integer * Statistics * Trigonometry * Base/Radex * Time Scientific/Statistics Mode has "Norm/Exp/Eng", "Precision" slider, and a toggle for "Double Operators. Bit/Integer Mode has "Number Bits "8, 16, 32, 64", at the moment. There are "skins", as well (see Preferences > User Interface I put my iOS calc in extras and put this one in its place. I keep on Simple, for default. I have used the other modes (Time is new) periodically, and it hasn't failed me. I felt Alexander Clauss deserved the .99 cents for such a well made tool and his continued service and support! Thank you for continued perseverance with this "Kalkulilo: "pocket calculator!"
  • T
    Thog
    iTunes
    I'm visually handicapped, and I've looked all over for a decent, well-designed calculator with the functions I need. The contrast on the button layout is helpful. In earlier versions, I was annoyed by some rather poor VoiceOver support. It seems to have improved greatly, and as a bonus the developer has now added support for the Apple Watch! What's pleasing is that the Apple Watch support is actually well thought out. It works far better than other calculators I've tried on it. It was immediately usable and I am highly appreciative of that. I've finally reached the point where I am deleting the other calculators I use. This app now does it all for me, and does it well.

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