1.41 Safe to install
Efficient and Intuitive Calculations with Eleven | Calculator

Eleven | Calculator by Alexander Ewering offers a sleek design and powerful functionality for both casual and professional users, making calculations a breeze.
This calculator app for iPhone and iPad presents a comprehensive solution for everyday calculations with a range of innovative features.
- Real-time calculations: The app does not require an equals button; results are computed automatically as the user types.
- Clarity in operations: Users can view and edit their entire calculation at any time, minimizing confusion.
- Flexible input: Users can enter calculations of significant length, with the display and keypad resizing accordingly.
- Edit with ease: The interface allows for tapping or sliding across the display to adjust calculations at any point.
- Unlimited Undo and Redo: Mistakes can be corrected effortlessly.
- Enhanced readability: Differentiated colors are used to distinguish between numbers and operators for easier comprehension.
- Dynamic buttons: Only relevant buttons illuminate based on context and cursor position, streamlining the user experience.
- Aesthetic design: The application features a visually appealing analog-style design.
- Customizable themes: Choose from four included themes or skins to suit personal preferences.
- Speed: Operations occur with impressive rapidity.
The app supports all basic operations including addition, subtraction, multiplication, division, and square root calculations. Advanced functionalities are also included, such as cube roots, squaring, and cubing. It accommodates expressions with parentheses and can handle results up to ± 10³⁰⁰. A convenient long-tap option allows users to copy results directly to the clipboard.
An optional scientific calculator feature is available through an in-app purchase, providing additional capabilities in landscape orientation:
- Power function with customizable exponent
- Edit degrees for root functions
- Edit base for logarithmic functions
- Trigonometric functions: sine, cosine, tangent
- Inverse trigonometric functions: asin, acos, atan
- Hyperbolic functions: sinh, cosh, tanh
- Inverse hyperbolic functions: asinh, acosh, atanh
- Factorial function (integers only)
- Modulo (remainder) operator
- Smart constants: π and e
- A smart random number generator
- No mode switching -- all functions are readily available without delay
Overview
Eleven | Calculator is a Freeware software in the category System Utilities developed by Alexander Ewering.
The latest version of Eleven | Calculator is 1.41, released on 01/06/2025. It was initially added to our database on 01/06/2025.
Eleven | Calculator runs on the following operating systems: iOS.
Users of Eleven | Calculator gave it a rating of 5 out of 5 stars.
Pros
- User-friendly interface that is easy to navigate.
- Supports multiple mathematical functions including basic arithmetic, percentages, and square roots.
- Customization options for themes and layouts enhance the user experience.
- Features a memory function allowing for storage and retrieval of values.
- Offers scientific calculator features for advanced calculations.
Cons
- Limited to basic features compared to dedicated scientific or graphing calculators.
- Some users may find the design too simplistic or lacking advanced functionalities.
- No support for graphing functions or complex number calculations.
- May not be compatible with all operating systems or devices, limiting accessibility.

David Fischer
I am a technology writer for UpdateStar, covering software, security, and privacy as well as research and innovation in information security. I worked as an editor for German computer magazines for more than a decade before joining the UpdateStar team. With over a decade of editorial experience in the tech industry, I bring a wealth of knowledge and expertise to my current role at UpdateStar. At UpdateStar, I focus on the critical areas of software, security, and privacy, ensuring our readers stay informed about the latest developments and best practices.
Latest Reviews by David Fischer
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