Best A Complex Calc alternatives: apps like A Complex Calc

10+ similar apps compared and reviewed

4.7 avg rating
10 free apps
Updated November 2026

A Complex Calc is great, but it's not the only option. Explore 10+ similar apps for iPhone and iPad, each reviewed and rated by real users. Find free alternatives, premium upgrades, and hidden gems.

Top Alternatives to A Complex Calc

Complex RPN Calculator#1

Complex RPN Calculator by John Coddington

Complex Numbers RPN Calculator
Editor's Choice
🔧 Utilities
3.9😐(24 ratings)
Free
Complex RPN Calculator screenshot 1
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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.

What We Love

  • ✅ Great RPN functionality
  • ✨ Complex number support
  • 🆓 Free to use
  • 🚫 No ads or in-app purchases
  • 💻 Works on macOS
  • 👍 Simple and clean design
  • 💡 Customizable key press sound
  • 🗂️ Stack visibility

Room to Improve

  • 🎨 SwiftUI design is ugly
  • 🐌 Slow keyboard response
  • 🖱️ Clunky operation
  • 📉 Complex number operations limited
  • ⚠️ Broken on newer iOS versions (historically)
  • 😵 Confusing for non-RPN users
Calculator for Complex Field#2

Calculator for Complex Field by Jongseung Park

Everyday + professional uses
Strong Contender
🔧 Utilities
5.0(4 ratings)
Free
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Calculator for Complex Field screenshot 6

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.

UniCount scientific calculator#3

UniCount scientific calculator by Danil Voidilov

Engineering & complex numbers
Worth Considering
🔧 Utilities
4.9(14 ratings)
FreeIn-App Purchases
UniCount scientific calculator screenshot 1
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A powerful scientific calculator offering natural formula input, complex number support, unit and currency conversions, and matrix operations. It provides high precision calculations and allows users to define custom constants and functions for enhanced usability.

More apps like A Complex Calc

4
Calccis
Calccis
Calccis
A RPN calculator
Free

This utility app offers advanced calculations using reverse Polish notation. It supports a wide range of functions including trigonometry, logarithms, and matrix operations for real, fractional, and complex numbers. An undo stack allows for up to 100 operations to be reversed.

Reverse Polish Notation (RPN)Basic arithmeticTrigonometrical functions (degrees/radians)
🔧 Utilities
(1)
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5
RLM-10CX
RLM-10CX
RLM-10CX
Scientific Calculator
Free

This scientific calculator offers a comprehensive suite of tools for finance, business, statistics, and complex scientific calculations. It emulates a classic calculator while leveraging modern iOS device capabilities for ease of use and advanced functions.

Finance and Business calculationsDate and Time interval calculationsAdvanced Statistics and Curve Fitting
🔧 Utilities
(1)
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6
Plottron
Plottron
Plottron
3D graphing calculator
Free

This application offers advanced 2D and 3D graphing capabilities for various function types, alongside a comprehensive scientific calculator. It supports implicit graphing, complex number visualization, and symbolic differentiation. The calculator includes user-defined variables, live evaluation, and probability density functions.

2D and 3D graphingImplicit graphingComplex number visualization
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(12)
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7
PyCalc
PyCalc
PyCalc
Calculate better with Python
Free

This app offers a revolutionary approach to mobile calculations, allowing users to view and edit entire equations at once. It leverages the power of Python 3.11.1 for advanced functions, symbolic math, and financial analysis, making complex computations accessible on the go.

Real-time editable calculation viewPython 3.11.1 interpreterProgrammable scientific calculator
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8
bcRPN
bcRPN
bcRPN
by Paul Wilkins
Free

This utility app functions as a Reverse Polish Notation calculator. It handles complex numbers and utilizes extended precision for all calculations, offering an unlimited stack depth and an undo feature for up to 10 operations.

Reverse Polish Notation (RPN) inputComplex number calculationsExtended precision math
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(9)
free
9
PCalc Lite
PCalc Lite
PCalc Lite
The Best Calculator
Free

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.

Optional RPN modeMultiple undo and redoUnit conversions and constants
🔧 Utilities
(214)
free with in-app purchases
10
Calculator #
Calculator #
Calculator #
Scientific Calculator
Free

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.

Math Photos SolverHandwriting RecognitionAI Math Problem Solver
🔧 Utilities
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free with in-app purchases