Best Hp 15C Calculator Apps

208+ iOS apps curated and reviewed

4.3 avg rating
13 free apps
Updated July 2026

Out of 208+ hp 15c calculator apps on iOS, 13 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.

Top Picks for Hp 15C Calculator

Retro 15C#1

Retro 15C by Greg Hewgill

Editor's Choice
πŸ”§ Utilities
4.3😊(212 ratings)
Free
Retro 15C screenshot 1
Retro 15C screenshot 2

This app emulates a classic RPN scientific calculator, offering advanced features like complex number arithmetic, matrix calculations, and programmability. It provides a functional and complex tool reminiscent of 1980s calculators.

What We Love

  • πŸš€ Lightning-fast calculator
  • πŸ‘ Authentic look and feel of HP 15C
  • πŸš€ Faster than real HP 15C
  • πŸ‘ Excellent RPN emulation

Room to Improve

  • πŸ› Doesn't save settings, programs, or memory
  • πŸ› No key press feedback or sound
  • πŸ› Blinking display issue with large calculations
HP 15c Calculator#2

HP 15c Calculator by MORAVIA Consulting, spol. s r.o.

Official emulator of HP 15c
Strong Contender
πŸ”§ Utilities
4.8😊(168 ratings)
$14.99
HP 15c Calculator screenshot 1
HP 15c Calculator screenshot 2
HP 15c Calculator screenshot 3
HP 15c Calculator screenshot 4

Experience the official emulator of the legendary HP 15c scientific calculator. This app offers a redesigned interface and modern look while preserving the precision and reliability of the original. It features RPN input, matrix calculations, complex functions, and numerical integration for professionals and students.

What We Love

  • πŸš€ Excellent emulation of original HP 15C
  • πŸ‘ Faithful reproduction of classic calculator
  • πŸ‘ Includes original manual
  • πŸ‘ Works just like the real thing

Room to Improve

  • πŸ› Display issues in portrait mode
  • πŸ› Bugs with programming and trig functions
  • πŸ”‡ Loud button click sound
iHP48#3

iHP48 by Alexis Lorca

The classic HP48 improved
Worth Considering
πŸ“Š Productivity
4.7😊(270 ratings)
Free
iHP48 screenshot 1
iHP48 screenshot 2
iHP48 screenshot 3
iHP48 screenshot 4
iHP48 screenshot 5

This app brings the powerful HP48 calculator experience to your mobile device. It offers enhanced performance, seamless file management, and a customizable interface with support for various HP calculator models. Enjoy a familiar and convenient calculator solution without needing extra hardware.

What We Love

  • πŸš€ Excellent emulation of HP48
  • πŸ‘ Familiar and nostalgic feel
  • πŸ‘ Comprehensive functionality
  • πŸ‘ Customizable skins

Room to Improve

  • πŸ› Occasional crashes or freezes
  • πŸ› Missed keystrokes when typing quickly
  • πŸ› Blank or flickering display

More Hp 15C Calculator apps to explore

4
15C Pro Scientific Calculator
15C Pro Scientific Calculator
15C Pro Scientific Calculator
HP 15C emulator
$5.99

This app emulates the HP 15C scientific calculator, offering advanced functions like complex numbers, matrix operations, numerical integration, and root finding. It provides the same capabilities as the original hardware with enhanced performance for your mobile device.

Complex number supportMatrix operationsNumerical integration
πŸ”§ Utilities
(277)
paid
5
Vicinno Financial Calculator
Vicinno Financial Calculator
Vicinno Financial Calculator
HP 12C emulator
$5.99

This app emulates the functionality of the HP 12C Financial Calculator, offering all its features and more for mobile devices. It provides a reliable and convenient way to perform complex financial calculations on the go.

HP 12C emulatorTime value of money (TVM)Cash flow analysis (NPV, IRR)
πŸ’° Finance
(1.2K)
paid
6
RLM-15CX
RLM-15CX
RLM-15CX
Advance Scientific Calculator
Free

This advanced scientific calculator emulates the functionality of the HP-15C, offering comprehensive tools for finance, business, statistics, and scientific calculations. It supports programming, equation solving, and unit conversions, optimized for iOS devices.

Programmable advanced scientific calculatorFinance and business calculation menusStatistics and probability functions
πŸ“Š Productivity
(13)
free with in-app purchases
7
Electrical Engineering - lite
Electrical Engineering - lite
Electrical Engineering - lite
60 calculations with circuits
Free

This app offers a comprehensive suite of electrical calculations and conversions for professionals and students. It handles diverse units and provides precise results for various electrical engineering tasks, including voltage, current, power, and more.

60 Electrical Calculators16 Electrical ConvertersVoltage, Current, Resistance, Power calculations
πŸ“š Education
(248)
free with in-app purchases
8
HP15C: Scientific Calculator
HP15C: Scientific Calculator
HP15C: Scientific Calculator
Classic Science Calc for you
$4.99

Relive the classic computing experience with a vintage scientific calculator. This app emulates a beloved 90s model, offering a nostalgic and functional tool for calculations.

Vintage scientific calculator emulationClassic 90s designFunctional for scientific calculations
πŸ”§ Utilities
(3)
paid
9
Touch RPN calc
Touch RPN calc
Touch RPN calc
Financial/Sci RPN calculator
Free

This app offers a powerful RPN calculator with financial and scientific functions, mimicking popular industry-standard models. It includes programming capabilities and expandable flavors for diverse calculation needs.

RPN financial calculatorRPN scientific calculatorProgramming functions
πŸ’° Finance
(207)
free with in-app purchases
10
HP 12c Financial Calculator
HP 12c Financial Calculator
HP 12c Financial Calculator
by MORAVIA Consulting, spol. s r.o.
$14.99

This app emulates the legendary HP 12c financial calculator with a redesigned interface and modern look. It preserves the precision and reliability trusted by professionals, offering built-in financial tools for business, banking, real estate, and education.

Official HP 12c emulatorIdentical algorithms and layoutRPN input
πŸ’° Finance
(277)
paid
11
Unity Network App
Unity Network App
Unity Network App
by Unity Network Limited
Free

Connect approved devices to a secure network for verification tasks. Monitor device status and uptime with real-time diagnostics. Participate in network operations with clarity and efficiency.

Secure device connectionReal-time device status monitoringUptime tracking
πŸ”§ Utilities
(38)
free with in-app purchases
12
Calculator ∞
Calculator ∞
Calculator ∞
The Best Scientific Calculator
$5.99

This advanced calculator app offers a powerful math core and algebra engine for basic to complex calculations. It includes features like step-by-step solutions, handwriting recognition, and 2D graphing, making it suitable for students, engineers, and programmers.

Step-by-step solution hintsMath Photos SolverHandwriting Recognition
πŸ“š Education
(6.2K)
free with in-app purchases
13
11C Scientific Calculator
11C Scientific Calculator
11C Scientific Calculator
HP 11C emulator
$5.99

This app accurately emulates the classic HP 11C RPN scientific programmable calculator. It replicates the original's Reverse Polish Notation entry system and supports a wide range of mathematical functions, including advanced statistical and trigonometric operations.

RPN entry systemProgrammable functionsHyperbolic trig functions
πŸ”§ Utilities
(284)
paid
14
Panecal Scientific Calculator
Panecal Scientific Calculator
Panecal Scientific Calculator
For engineers and students
Free

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.

Formula editing with cursor and swipeReuse past formulasVariable memory for calculations
πŸ”§ Utilities
(1.9K)
ad-supported
15
Calculator⁼
Calculator⁼
Calculator⁼
Fraction, Scientific Calc +
Free

This app offers a clean and intuitive interface for both basic arithmetic and advanced scientific calculations. It includes a history tape to review past computations and supports various mathematical operations, making it suitable for everyday use and complex problem-solving.

Basic & Scientific CalculatorLive Currency ConverterHistory Tape
πŸ”§ Utilities
(357K)
free with in-app purchases
16
Calculator
Calculator
Calculator
by Apple Inc.
Free

This app offers both basic and scientific calculators for quick solutions to mathematical expressions. It also features a "Math Notes" function that allows users to type or write out equations and see them solved inline, with support for variables and graphing.

Basic and scientific calculatorsType or write math expressionsInline equation solving
πŸ”§ Utilities
(8.9K)
free
17
Calculator with History +
Calculator with History +
Calculator with History +
No ads & Scientific calculator
Free

This free calculator app offers a fast, ad-free experience with a visual input and calculation history. Customize your experience with various keyboard sounds and colors, and access advanced scientific functions when needed.

Ad-free experienceCalculation historyVisual input
πŸ’° Finance
(23K)
free with in-app purchases
18
PowerOne calculator
PowerOne calculator
PowerOne calculator
Finance, scientific, and more
Free

This app offers a powerful calculator with hundreds of pre-built templates for finance, engineering, and more. Users can also create custom calculations for specific needs, ensuring accuracy and speed for repetitive tasks. Access your calculations across devices, online or offline.

Hundreds of pre-built calculation templatesCreate custom calculation templatesStandard and RPN calculator modes
πŸ”§ Utilities
(748)
free with in-app purchases
19
Basic Calculator: Classic Calc
Basic Calculator: Classic Calc
Basic Calculator: Classic Calc
big buttons and wallpapers
Free

A free, classic calculator app with large, easy-to-press buttons and customizable skins. It supports basic arithmetic, memory functions, and can handle very large numbers without using scientific notation. Multitasking is also supported on compatible devices.

Large, easy-to-press buttonsMultiple beautiful skinsBasic arithmetic operations
πŸ”§ Utilities
(3.1K)
free with in-app purchases
20
OneCalc: All-in-one Calculator
OneCalc: All-in-one Calculator
OneCalc: All-in-one Calculator
Calculates everything. Try it.
Free

This app offers a comprehensive suite of over 40 calculators and unit converters for various needs, including finance, health, construction, and everyday math. It features standard, scientific, and specialized calculators for tasks like loan amortization, currency conversion, and material estimation.

Over 40 calculators and unit convertersStandard and scientific calculator functionsFinancial calculators (interest, loan, currency)
πŸ“Š Productivity
(4.8K)
free with in-app purchases