# Complex RPN Calculator vs Scientific Calculator math

Complex RPN Calculator and Scientific Calculator math both sit at 3.9 stars, but that hides the real split: 52% of Complex RPN Calculator's written reviews are positive against 25% of Scientific Calculator math's. Scientific Calculator math's advantage is iOS requirement (4.3 vs 16.4). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 3.9 for Complex RPN Calculator against 3.8 for Scientific Calculator math. Both are backed by a comparable volume of ratings — 24 and 17 respectively. Written reviews are what separate them: 52% of Complex RPN Calculator's written reviews are positive against 25% of Scientific Calculator math's.

## The numbers

| Metric | Complex RPN Calculator | Scientific Calculator math |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.9 (24 ratings)](https://appshunter.io/ios/app/complex-rpn-calculator/id291826330/reviews)** | [3.8 (17 ratings)](https://appshunter.io/ios/app/scientific-calculator-math/id754749886/reviews) |
| Number of ratings | **24** | 17 |
| Positive reviews | **51.7% of reviews** | 25.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | — |
| Monetization | Free | Free |
| Size | 1 MB | 15 MB |
| Requires iOS | 16.4 | **4.3** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [John Coddington](https://appshunter.io/developer/291826333) | [SUB TRADE GLOBAL SAL OFFSHORE](https://appshunter.io/developer/965320322) |

## What reviewers say

### Complex RPN Calculator

[App page](https://appshunter.io/ios/app/complex-rpn-calculator/id291826330)

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.

**Highlights:** Complex number support, Four-level stack, Polar and rectangular formats, State persistence, 10 memory locations, Scientific calculations

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- ✅ Great RPN functionality
- ✨ Complex number support
- 🆓 Free to use
- 🚫 No ads or in-app purchases
- 💻 Works on macOS

**What reviewers complain about**

- 🎨 SwiftUI design is ugly
- 🐌 Slow keyboard response
- 🖱️ Clunky operation
- 📉 Complex number operations limited
- ⚠️ Broken on newer iOS versions (historically)

**Reported bugs**

- Mutes other apps when used
- Slow keyboard response after update
- X^3 calculation incorrect for large imaginary numbers
- App crashes on opening/button press (historical iOS 9 issues)
- App starts upside down in landscape on iPad (historical iOS 8 issue)

**Requested features**

- Turn off key click sound
- Customize number display
- See the stack
- Fix slow entry response
- Fix imaginary number calculation (X^3)


### Scientific Calculator math

[App page](https://appshunter.io/ios/app/scientific-calculator-math/id754749886)

This app provides advanced mathematical functions for scientific calculations, including trigonometric, logarithmic, and exponential operations. It supports complex numbers and large numbers, making it suitable for college-level programs. The calculator covers a wide range of math topics from algebra to calculus.

**Highlights:** Advanced mathematical functions, Trigonometric, logarithmic, exponential functions, Complex number support, Large number support, Algebra, Geometry, Trigonometry, Calculus, Floating point arithmetic

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Complex RPN Calculator free?

Complex RPN Calculator is free to download, with no in-app purchases.

### Is Scientific Calculator math free?

Scientific Calculator math is free to download, with no in-app purchases.

### Which has better reviews, Complex RPN Calculator or Scientific Calculator math?

Complex RPN Calculator is rated higher. Complex RPN Calculator averages 3.9 out of 5 from 24 ratings, while Scientific Calculator math averages 3.8 from 17 ratings.

### Do Complex RPN Calculator or Scientific Calculator math have ads?

Neither Complex RPN Calculator nor Scientific Calculator math shows ads.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*