Features & Capabilities

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.

User Growth & Download Statistics

App
By:
Alexander Clauss
Rating:
4.60
(28)
Version:
5.1.4 Last updated: 2025-10-20
Version code:
879049133
Creation date:
2019-02-11
Compatible devices:
Size:
11.75MB
Price:
1.99
URLs:
Website ,Privacy policy
Full description:
See detailed description
Source:
Apple Apps Store
Data ingested on:
2026-06-05
Compare stats and ranking:

Ranking

Contact the developer

Chrome-Stats does not own this Apple app. Please use these information below to contact the Apple app developer.
Developed by:
Alexander Clauss
Apple Apps Store
https://apps.apple.com/us/app/kalkulilo-calculator/id286091993
Website:
http://mobile.clauss-net.de/kalkulilo/

User Reviews

I love this calculator for the ability to have some scientific calculation available on the Apple Watch. (Revised) It required a re-install after upgrade to watchOS 26 to have it work on my watch. I particularly like the variety of modes and the ability to do math in any number system, not just binary, decimal and hexadecimal. The size of the keys is also reasonably sized despite the functionality. I am basically using it as my primary calculator all the time
by Qu*****, 2025-12-02

Years after first finding it, this continues to be my default calculator on iOS. It’s easy to use, doesn’t push ads, and has any and every feature short of actual graphing that you might need to do some quick math.
by gr*****, 2025-01-15

You should add a calculus calculator, linear algebra calculator, and probability. I love this calculator app
by Gi*****, 2024-10-24
View all user reviews ›

Best Kalkulilo (Calculator) Alternatives

Here are some Apple apps that are similar to Kalkulilo (Calculator):