Best x36 alternatives: apps like x36

10+ similar apps compared and reviewed

4.6 avg rating

7 free apps

Updated October 2026

x36

Carl Cook

🔧 Utilities

📊 Productivity

x36 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 x36

Dreadnought Tachymeter by AARON L SHURTLEFF

Measure pace instantly.

Editor's Choice

🔧 Utilities

5.0(3 ratings)

Free

This minimalist stopwatch instantly converts elapsed time into your rate per hour. Track laps, tasks, or any unit of time without manual calculations. Ideal for runners, cyclists, and productivity tracking.

SFX Scientific Calc Premium by Wai Kwong Lee

Engineering Math & Statistics

Strong Contender

🔧 Utilities

4.3(3 ratings)

$5.99

SFX Scientific Calc Premium screenshot 1

SFX Scientific Calc Premium screenshot 2

SFX Scientific Calc Premium screenshot 3

SFX Scientific Calc Premium screenshot 4

SFX Scientific Calc Premium screenshot 5

SFX Scientific Calc Premium screenshot 6

This scientific calculator offers advanced functions for academic, scientific, and engineering needs. It supports basic arithmetic, memory storage, statistical calculations, and various mathematical functions. The interface mimics a popular Casio model for ease of use.

my59 by Miroslav Perovic

Classic calculator emulator

Worth Considering

🔧 Utilities

0.0(0 ratings)

FreeIn-App Purchases

More apps like x36

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)

Scientific Calculator

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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

This app faithfully recreates the TI-57 programmable calculator, offering its full scientific functions and programming capabilities. It includes a user manual, sample programs, and features like turbo speed and alphanumeric display.

TI-57 recreationScientific functionsProgramming capabilities

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

Official emulator of HP 15c

$14.99

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.

Official HP 15c emulatorRPN (Reverse Polish Notation)Matrix calculations

12C Platinum Calculator

Free

This financial calculator offers over 120 built-in functions for complex calculations like IRR and NPV. It supports RPN entry, programming custom keystrokes, and includes features for loan payments, interest rate conversions, bond pricing, and statistical analysis.

120+ built-in financial functionsRPN keystroke entryProgrammable keystrokes (up to 99)

RPN Calculator. HP-35, 45, 21

Free

Emulates classic Hewlett Packard RPN scientific calculators from the 1970s. Experience the original HP-35, HP-45, and HP-21 models on your iPhone.

RPN calculator emulationHP-35 modelHP-45 model