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jCalc – Scientific Calculator

jCalc – Scientific Calculator

History, Fractions, Functions

259 ratings
81 reviews
📚 Education
🔧 Utilities
Free

Details

Released
June 25, 2014
Updated
January 13, 2025

Developer

Jon Ericksen
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jCalc – Scientific Calculator screenshot #1 for iPhone
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jCalc – Scientific Calculator screenshot #7 for iPhone
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About

This app is a powerful yet easy-to-use scientific calculator designed for students, teachers, and professionals. It simplifies complex calculations involving fractions, decimals, and advanced equations with flexible answer formats and smart conversions.

✓Fractions and decimals calculations
✓Flexible answer formats
✓Smart conversions
✓Advanced math functions
✓Memory recall
✓Auto parentheses
Show original description

What users say about jCalc

Reviews of jCalc are mostly positive: the Utilities app is rated 4.6/5 from 259 App Store ratings. What users like most: free and ad-free calculator app, multiple customizable themes and color schemes. Top complaints: display rendering issues with character visibility, app freezing and crashing problems. Summarized from real user reviews.

Positive things

  • 👍Free and ad-free calculator app
  • 🎨Multiple customizable themes and color schemes
  • 📜Running tape/history feature to review calculations
  • 🔢Fraction, decimal, and mixed number support
  • ⚡Fast and efficient performance
  • 🧮Easy-to-use interface with large buttons
  • 🎯Great for students (GCSE, A-levels, algebra, geometry)
  • 📱Works well in split-screen mode
  • 🌙Dark theme with high contrast options
  • 🔧Scientific calculator capabilities

Negative things

  • 🐛Display rendering issues with character visibility
  • 🐛App freezing and crashing problems
  • 📱Landscape mode not working on iPhone
  • 🔌Limited button size for users with larger fingers
  • 📢Intrusive ad banner at top of screen
  • ⚠️Fraction buttons not functioning properly
  • ❌Missing memory function
  • 🔄Inconsistent behavior across iOS updates
  • 🎨Non-conventional design styles can be distracting
  • ⏱️Lacks tutorial for new users
See all reviews

What's New in jCalc

2.3

January 13, 2025

• Improved performance and responsiveness for a smoother user experience.

User reviews

Most RecentHighest RatedLowest Rated

Free

Actual free calc app. Good for gcse a levels
TT-:-A

Calculadora

Excelente Calculadora
YMYo soy el magnifico

Very nice app + Suggestion

I reallly like the app. It has cool designs and everything about it is very nice. It would be cool if I had a widget since I enjoy this more than the Apple calculator and would like a widget to replace the Apple one. (This is a student from 4th period AP precalc this year)
AAaronSingh1

Every good

Very good
FFbtruiosriyhvtrrsvt

Really good calculator, even better teacher

Has everything i need to pass my algebra 2 class. Thanks Mr. Ericksen!
Iironpirate79
See 76 more reviews

User experience

🐞

Reported Bugs

7 issues

Display characters not rendering correctly (about 1/4 of characters missing)

Bug

Fraction buttons not working as intended

Bug

iPhone landscape mode does not rotate or display split view

Bug

App freezes during use

Bug

Character display issues with numbers 0-9 appearing incomplete

Bug

Compatibility issues with latest iOS updates

Bug

Fraction input only accepts single digits before conversion

Bug
✨

Requested Features

9 requests

Widget support for home screen

Feature

Scientific calculator functions (sin, cos, tan, square root, squaring)

Feature

Original version 1.0 color scheme option

Feature

Running tape format in newer versions

Feature

Screen rotation lock for landscape mode

Feature

Memory function for calculations

Feature

More conventional calculator design option

Feature

Tutorial or onboarding guide

Feature

Support for iPhone Max devices

Feature

FAQ

What does jCalc do?

jCalc is a scientific calculator designed to simplify complex mathematical calculations. It handles fractions, decimals, advanced equations, and provides flexible answer formats. It's suitable for students, teachers, and professionals needing a powerful tool for their work.

What are the key features of jCalc?

Key features include easy handling of fractions and decimals, flexible answer formats (up to 16 decimal places, various result types), smart conversions between formats, and advanced math tools like roots, powers, logarithms, trigonometric functions, and probability functions.

Is jCalc free to use?

Yes, jCalc is a free application. There are no in-app purchases or advertisements mentioned, indicating it is entirely free for users.

What kind of math problems can jCalc solve?

jCalc can solve a wide range of math problems, including those involving fractions, decimals, roots, powers, exponents, logarithms (with custom bases), trigonometric and hyperbolic functions, permutations, combinations, and factorials. It also supports scientific notation and percentage calculations.

Who is jCalc designed for?

This app is specifically designed for students, teachers, and professionals who require a robust and user-friendly scientific calculator. Its comprehensive features make it suitable for academic studies, teaching, and professional applications involving complex calculations.