# Complex RPN Calculator vs NetSonar

The clearest difference is price: Complex RPN Calculator at Free against NetSonar's $0.99. Complex RPN Calculator also leads on ratings volume (24 vs 1) and iOS requirement (16.4 vs 18.2). NetSonar's advantage is rating (5.0 vs 3.9). On ads, in-app purchases and device support there is nothing between them.

Complex RPN Calculator is free to download; NetSonar costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

NetSonar holds the better App Store score, 5.0 against 3.9. That said, the two scores are not equally well evidenced: Complex RPN Calculator has 24 ratings behind it against 1, so its average is the more settled of the two.

## The numbers

| Metric | Complex RPN Calculator | NetSonar |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | [3.9 (24 ratings)](https://appshunter.io/ios/app/complex-rpn-calculator/id291826330/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/netsonar/id6755057625/reviews)** |
| Number of ratings | **24** | 1 |
| Positive reviews | 51.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | — |
| Monetization | **Free** | Paid |
| Size | 1 MB | 7 MB |
| Requires iOS | **16.4** | 18.2 |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [John Coddington](https://appshunter.io/developer/291826333) | [葆霖 李](https://appshunter.io/developer/1896617402) |

## 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)


### NetSonar

[App page](https://appshunter.io/ios/app/netsonar/id6755057625)

Discover and analyze all devices on your local network. Get detailed information on IP addresses, MAC addresses, open ports, and services. Export reports in text or CSV format.

**Highlights:** Comprehensive network scanning, Smart device identification, Detailed device information, Port and service analysis, Report generation (text/CSV), Modern interface with dark mode

**Features:** Vision Pro support

**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 NetSonar free?

NetSonar costs $0.99, with no in-app purchases.

### Which has better reviews, Complex RPN Calculator or NetSonar?

NetSonar is rated higher. Complex RPN Calculator averages 3.9 out of 5 from 24 ratings, while NetSonar averages 5.0 from 1 ratings.

### Do Complex RPN Calculator or NetSonar have ads?

Neither Complex RPN Calculator nor NetSonar 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.*