Best Calculator for Complex Field alternatives: apps like Calculator for Complex Field

10+ similar apps compared and reviewed

4.5 avg rating
10 free apps
Updated October 2026

Calculator for Complex Field 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 Calculator for Complex Field

Complex RPN Calculator#1

Complex RPN Calculator by John Coddington

Complex Numbers RPN Calculator
Editor's Choice
🔧 Utilities
3.8😐(22 ratings)
Free
Complex RPN Calculator screenshot 1
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Complex RPN Calculator screenshot 3
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Complex RPN Calculator screenshot 5
Complex RPN Calculator screenshot 6

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
A Complex Calc#2

A Complex Calc by Antonio Ruffolo

Complex Scientific Calc
Strong Contender
🔧 Utilities
4.7(23 ratings)
Free
A Complex Calc screenshot 1
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A Complex Calc screenshot 6

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.

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4
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GUTCalc Physics Unit Converter
GUTCalc Physics Unit Converter
Calculate in natural units
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This calculator handles complex physics calculations with units. It supports SI, natural, and CGS units, physical constants, and functions. It automatically converts units and flags algebraic errors, with an option to upgrade for advanced organization and syncing features.

SI, Natural, and CGS unit modesAutomatic unit conversionPhysical constants and functions
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HP16C
HP16C
HP16C
by Michael Doornbos
Free

This app faithfully recreates the legendary HP 16C Computer Scientist calculator, offering advanced hex arithmetic, bit manipulation, and base conversion. It features RPN, keystroke programming, and modern enhancements like a two-line display and haptic feedback.

Full RPN calculatorInteger arithmetic (HEX, DEC, OCT, BIN)Configurable word size (1-64 bits)
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9
Command-Line Calculator
Command-Line Calculator
Command-Line Calculator
Calculator with History
Free

This app offers a command-line interface for performing complex calculations, including chained operations, variable assignments, and advanced mathematical functions. It supports various number bases, constants, and provides a built-in help system for ease of use.

Command-line interfaceChained calculationsVariable assignment
🔧 Utilities
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10
ThetaCalc
ThetaCalc
ThetaCalc
by Felix Stehli
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This utility app provides a Reverse Polish Notation (RPN) calculator. Users can extend its functionality by programming custom functions and equations using JavaScript.

Reverse Polish Notation (RPN) calculatorUser-programmable functionsJavaScript equation support
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