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Kalkulilo (scientific calculator)

By Alexander Clauss

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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 iAds 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 iAds permanently for a small fee via In-App purchase.

What's New in Version 4.0

- Includes a native App for WatchOS 2 (which doesn’t need the phone to run)
- Supports the „Split screen“ mode of iOS 9 on the iPad (on iPad models which support this mode)
- It is possible to paste numbers from the pasteboard (tap on the "calculator display“ to get the copy/paste menu).


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Apple Watch

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Customer Reviews

Best Apple Watch calculator!!!

This is the best calculator that I have found for the Apple Watch. First, the screen is well organized and uncluttered. Secondly, the app is native so button responses are fast. Lastly (and perhaps best) the calculator takes advantage of haptic feedback to confirm button pushes! Finally, a suitable replacement for my Casio CFX-200!

It would be nice to have a 'back' button to erase mistaken entries, and perhaps a list of constants, but as it is it is a terrific piece of programming!


Kalkulilo (scientific calculator)
View In iTunes
This app is designed for both iPhone and iPad
Offers Apple Watch App for iPhone
  • Free
  • Category: Productivity
  • Updated:
  • Version: 4.0
  • Size: 4.8 MB
  • Apple Watch: Yes
  • Languages: English, German
  • Seller:

Compatibility: Requires iOS 7.1 or later. Compatible with iPhone, iPad, and iPod touch.

Customer Ratings

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