# EduCalc Classic Pro

> Advanced scientific calculator with graphing, matrix operations, and educational reference. (iPhone/iPad app by William Jockusch.)

- Source: https://appshunter.io/ios/app/educalc-classic-pro/id369480853 (this page in markdown: same URL + `.md`)
- Developer: [William Jockusch](https://appshunter.io/developer/342126227)
- Category: Education, Utilities
- Price: $1.99
- Rating: 4.40/5 from 22 App Store ratings · 170 written reviews indexed
- Age rating: 4+
- Requires: iOS 11.0 · 14 MB
- Languages: American English
- Released: 2010-05-01
- Data updated: 2026-07-31
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/educalc-classic-pro/id369480853/reviews.md

## What is EduCalc Classic Pro?

** I recommend buying EduCalc Pro instead of this app.  That said, I will be maintaining this app. **

Features:

1)  Scientific Calculator.  A lot of thought has gone into the design of the keyboard, which gives you everything you need while keeping the keys as large as possible.  Available functions include the following:

• the usual arithmetic functions and exponentiation.
• square root, cube root, nth root, natural log, log base 10, log of arbitrary base, absolute value, factorial, permutations (nPr), combinations (nCr), modulus, random integer, bell curve, cumulative normal distribution.
• Define and name your own constants
• Summations
• Complex numbers!
• Sig figs (requires iOS 6; enable under settings)
• Programmable keys (enable under settings)

2)  Graphing.  Capabilities:
• Graph up to nine equations at once.
• Graphs are labeled.
• You can drag the graph or pinch to zoom in or out.
• Calculator can find roots and intersections.
• Can graph in polar coordinates.
• Can graph parametric equations.
• Can graph parametric equations.
• Can graph implicit functions, such as x^2+y^2-4=0.  Most calculator apps can't do this!

3)  Vector and Matrix calculator.  Vector dot and cross products.  Multiply and add matrices.  Determinant, transpose, Eigenvalues and Eigenvectors.  

4)  It can make a table of the values of any function you care to enter.  You can choose the starting x value of the table, as well as how much x increases for each successive row.

5) Triangle solver.  Enter three sides, two sides and an angle, or two angles and a side, and the solver calculates the rest.

6) Polynomial solvers.  Find roots of linear, quadratic, or cubic polynomials.

7)  The  reference hits the high points of the following subjects:
algebra, calculus, geometry, trigonometry, vectors, vector calculus, and classical mechanics.  So if you need a reminder of a trig identity . . . or the quadratic formula . . . or the chain rule from calculus . . . and so on, it's right there for you.

8)  A unit converter.  Your data are in meters, and you need an answer in feet?  No problem!  With a tap, you can enter the result of your conversion into the calculator.  Currently converts different units of the following: acceleration, angle, area, density, distance, energy, force, mass, power, pressure, speed, temperature, time, and volume.  Great for physics problem sets!  You can also define your own units.

9)  Constants for scientific calculations -- speed of light, strength of gravity at Earth's surface, etc. etc. etc.  Tapping on a constant will insert it into your calculation -- i.e, you don't have to key in the value.  Again, great for physics problem sets!

10)  Statistics mode, including options for scatter plots and for regression lines.

11)  Works on both iPhone and iPad.

*** Note about the screenshots -- if you are viewing this in iTunes, you can see 10 different shots across the 2 different devices.  They are all different shots.  We need that many to show the range of capabilities of the calculator; even still we are leaving some things out. ***

I'd love to learn about your comments or suggestions.  You can write me at jockuxyzsch@gmail.com -- but without the xyz.  Thanks!

## Key features

- Scientific calculator with advanced functions
- Graphing of up to nine equations
- Vector and matrix calculations
- Unit converter
- Triangle and polynomial solvers
- Educational reference guide
- Statistics mode with regression

## What do users think of EduCalc Classic Pro?

Overall sentiment: positive

**Pros**

- 👍 Powerful and comprehensive calculator
- 🚀 Efficient and intuitive interface
- 💡 Excellent reference section with formulas and explanations
- 👍 Helpful for math, science, and engineering students
- 👍 Great value compared to expensive physical calculators

**Cons**

- 🐛 Compatibility issues with newer iOS versions
- 🐛 Graphing and unit conversion features not working as expected
- 🐛 Crashes and freezes reported by some users
- 💡 Lack of customization options (e.g., color themes, landscape mode)

**Commonly reported bugs**

- Invisible labels in dark mode
- Parametric graphing mode not functioning properly
- Unexpected behavior when trying to edit or clear equations

**Most requested features**

- Add support for 3D graphing
- Improve equation editing experience
- Integrate statistics and data analysis functions
- Allow saving and retrieving custom equations

## Recent user reviews (10 of 170)

All indexed reviews: https://appshunter.io/ios/app/educalc-classic-pro/id369480853/reviews.md

### 1/5 — No longer works as of late 2021

*2022-01-05, version 9.3*

Get the other app- will not work on iphone 13.

Loved this calc app when working.  He should delete from app store as the new educalc seems to work.

### 1/5 — Worked great

*2021-12-27, version 9.3*

I loved this app until it completely stopped working. Without a way to contact developer its now worthless.

### 4/5 — Great Calculator: Needs Updating

*2020-09-30, version 9.0*

This is a great App, I have been using it for years. Sadly; one of my favorite functions, the unit converter, stopped working properly after the last update. If the developer reads this I recommend you stick to only two versions of this App: a free and a pro. The fact that you have two free and two pro of basically the same App means you are required to update both Apps with each new IOS update. It’s to much work for such a cheap App. Also, from a consumer perspective having purchased this App just to find out later that you will be updating another version of it more frequently is upsetting. But at the end of the day, if the unit converter begins working again, it is still a great App.

### 4/5 — Sci GraphCalc review

*2020-09-13, version 9.0*

This is a very powerful app. that is a comprehensive way to view expressions. 

Having set up a function it can be cleared and saved but I do not know how it can be retrieved.

There is no way to send the output.The power of regression is associate a delight.

### 4/5 — Loved it, until...

*2020-09-04, version 9.0*

Great calculator for all your math and physics needs... until a couple months ago. After a recent update one of the most useful features, the unit converter, does not display the various choices in the scrolling menus :(

### 5/5 — Labels Invisible

*2020-08-16, version 9.0*

Latest update caused the labels on various screens to be invisible in dark mode. I know they’re there because I can do the calculations in the units section. But, I can’t see the units in the slider. I can see them in the conversion section below that. Also in the help section a lot of the labels for help are invisible as well. But, again I can click on them and they help appears. They are there but the text is the same color as the background.

### 5/5 — Fantastic App!

*2019-09-25, version 8.4*

This app fits all my needs very well. I would just ask for a newer update for ipads that work with iPadOS multitasking features! It would be handy for homework and problem solving having it able to float next to a worksheet on the ipad.

### 5/5 — This calculator app is amazing

*2018-09-17, version 8.4*

1. Get the newer app (same maker but it’s 2)
2. I bought this app back when I was in middle/high school. It has helped me on my way through college. Being a mechanical engineer I have many crazy problems that need to be solved. The best part so far I’d hearing my professor say how innacurate calculators are and how they round. Just for fun I put in 2^100, it out put the whole number so I kept pushing it. I can say that the overflow error happens after 2^10^5. That’s much more than I bargained for and it is one of the best purchases I’ve made.

### 5/5 — The best graphing calculator out there (and not just as far as apps go)

*2018-04-04, version 8.4*

This is by far the most perfect all inclusive calculator out there. It is so convenient for literally everything you can imagine. It has more functions and is more user friendly than my $100 TI 84. Only downside is you can’t use it for tests but in class and doing homework it is an invaluable asset. I will never not have this app on my phone. Highly recommend this 👍🏼

### 5/5 — Great!!!!

*2018-03-13, version 8.4*

This app has saved me many times, however I don’t think I can graph squared trig like sin^2 because the sin and ( are the same. My only suggestion would be to either not make the parentheses connected to the trig or have a separate button (like how to put in trig) for squared trig. Thanks!!

## Frequently asked questions about EduCalc Classic Pro

### What are the main functions of this calculator app?

This app functions as a scientific calculator with advanced features like complex numbers and programmable keys. It also includes a powerful graphing calculator capable of plotting multiple equations, a vector and matrix calculator, and tools for solving triangles and polynomials.

### Does the app support graphing of different equation types?

Yes, the graphing capabilities are extensive. You can graph up to nine equations simultaneously, including those in polar coordinates, parametric equations, and implicit functions. The graphs are labeled, and you can zoom and drag to explore them. The calculator can also find roots and intersections.

### What kind of educational resources are included?

The app features a comprehensive reference guide that covers key concepts in algebra, calculus, geometry, trigonometry, vectors, vector calculus, and classical mechanics. This is useful for quickly looking up formulas, identities, and definitions.

### Is there a unit conversion feature?

Yes, there is a unit converter that supports various units for acceleration, angle, area, density, distance, energy, force, mass, power, pressure, speed, temperature, time, and volume. You can also define your own custom units, making it very useful for physics problem sets.

### Is this app free to use?

Based on the provided information, this application is a paid app. There are no mentions of in-app purchases or advertisements, indicating a one-time purchase model.

## Version history (last 5 releases)

### 9.3 — 2020-10-28

updated for iOS 14
fixes for unit converter in dark mode
new website

### 9.0 — 2020-07-13

updated for iOS 13.

### 8.4 — 2018-01-09

fix iOS 8 layout issues

### 8.3 — 2018-01-07

minor fixes

### 8.2 — 2016-09-15

darker icon
info on Mac version under more, but not on calculator

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## More apps by William Jockusch

- [EduCalc Classic](https://appshunter.io/ios/app/educalc-classic/id378009553)
- [Ad-Free Unit Converter](https://appshunter.io/ios/app/ad-free-unit-converter/id379646417)
- [Yacht Free](https://appshunter.io/ios/app/yacht-free/id381091241)
- [Days between Dates](https://appshunter.io/ios/app/days-between-dates/id382014541)
- [Triangle Solver](https://appshunter.io/ios/app/triangle-solver/id383052814)

All apps by William Jockusch: https://appshunter.io/developer/342126227

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-31.*