181+ iOS apps curated and reviewed
Complex Calc is the household name in complex calc, but it's far from the only option. We track 181+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | Free | 5.0★ (2) | No | No | May 2026 |
| 2 |  | Free | 4.7★ (23) | No | No | Jul 2026 |
| 3 |  | Free | 3.8★ (22) | No | No | Jul 2026 |
| 4 |  | Free | 4.6★ (36K) | Yes | Yes | Jul 2026 |
| 5 |  | Free | 5.0★ (4) | No | No | May 2026 |
| 6 |  | $1.99 | 3.0★ (4) | No | No | May 2026 |
| 7 |  | Free | 4.7★ (15) | Yes | Yes | May 2026 |
| 8 |  | Free | 4.6★ (9.6K) | Yes | Yes | Jul 2026 |
Perform advanced calculations with complex numbers, including conversions between rectangular and exponential forms. Features quick copy-paste functionality and automatic dark mode for a seamless user experience.
Perform complex calculations with a modern, user-friendly interface. Offers both basic and scientific modes, including support for complex numbers and advanced functions. This lightweight application provides a history of computations and is completely free with no advertisements.
This scientific calculator utilizes a four-level stack and natively handles complex numbers. It allows users to input and view numbers in both polar and rectangular formats, remembering its state and offering 10 memory locations.
This multi-function calculator offers basic to advanced scientific and algebraic computations. It includes features like handwriting recognition, equation solvers, and 2D graphing, making it suitable for students and professionals. In-app purchases unlock advanced capabilities.
Input natural math expressions and get instant results on a separate line, allowing for easy revisions. Save up to 20 inputs and incorporate saved answers into new expressions. Supports complex field calculations with adjustable decimal digits and three output formats.
This app provides tools to calculate, visualize, and understand vectors and complex numbers. It offers interactive graphing, animated examples, and built-in formulas for students, teachers, and professionals. Easily export reports and review past calculations.
This app is a powerful calculator for students and professionals, offering advanced features like symbolic expression manipulation, graphing, and statistical analysis. It supports real, complex, and integer numbers, matrices, and vectors, making it versatile for various mathematical tasks.
This app offers a free basic and scientific calculator with an intuitive interface. It supports fractions, percentages, and advanced editing. Optional upgrades provide specialized calculators for fractions with units, polynomial and linear equation solving, graphing, and geometric shapes.
This comprehensive calculator app offers advanced scientific, graphing, and matrix functions. It includes tools for solving equations, performing statistical analysis, and converting units. A built-in reference guide covers various math and science topics.
This app offers both basic and advanced scientific calculations with an intuitive interface designed for tablets and phones. It includes features like currency conversion, calculation history, and the ability to share results. An optional premium membership removes ads and provides enhanced support.
A powerful calculator app for students, engineers, and scientists. It handles complex numbers, symbolic expressions, unit conversions, and matrix operations, with advanced plotting and programming capabilities.
This app functions as a scientific calculator, enabling users to input and edit complex formulas with ease. It supports formula history, variable memory, and various number system conversions for accurate calculations.
Perform calculations with complex numbers. Input real and imaginary parts or modulus and argument to find sums, differences, products, or quotients.
This application allows users to easily graph functions and equations, identify key points, and share their work. It's a powerful tool for learning math and science, offering features like regression and access to learning activities.
This app offers a powerful scientific calculator with a wide range of functions for trigonometry, statistics, and combinatorics. Users can define and evaluate their own functions, assign values to variables, and view multiple expressions simultaneously. It works offline and is completely free to use.
A smart and powerful calculator designed for ease of use, offering advanced scientific functions, unit and currency conversion, and a supercharged history tape. It adapts to various devices and supports external keyboards for enhanced functionality.
A straightforward and intuitive calculator app designed for ease of use. It offers a history bar, customizable themes, and advanced mathematical functions, ensuring a pleasant and efficient calculation experience on your device.
This free scientific calculator offers essential features like RPN mode, unit conversions, and multiple undo/redo. It provides a taste of a more powerful version, with optional in-app purchases for expanded functionality.