# Complex RPN Calculator vs Behavior Reporting

The clearest difference is rating: Behavior Reporting at 5.0 against Complex RPN Calculator's 3.9. Behavior Reporting also leads on update cadence (every 4 weeks vs every 5 months). Complex RPN Calculator's advantage is ratings volume (24 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

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

Behavior Reporting 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.

Complex RPN Calculator ships an update every 5 months, Behavior Reporting every 4 weeks. The most recent releases landed on October 31, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Complex RPN Calculator | Behavior Reporting |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.9 (24 ratings)](https://appshunter.io/ios/app/complex-rpn-calculator/id291826330/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/behavior-reporting/id1635237732/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 | **Every 4 weeks** |
| Monetization | Free | Free |
| Size | 1 MB | 7 MB |
| Requires iOS | 16.4 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [John Coddington](https://appshunter.io/developer/291826333) | [WMays Technology LLC](https://appshunter.io/developer/660469432) |

## 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)


### Behavior Reporting

[App page](https://appshunter.io/ios/app/behavior-reporting/id1635237732)

This application enables school staff to log and notify families about student behavior incidents. It supports tracking both negative and positive behaviors, aligning with the Positive Behavioral Intervention and Support framework. The system can be customized to match a school's Code of Conduct and sends immediate notifications to parents.

**Highlights:** Log behavioral incidents, Notify families of incidents, Track positive and negative behavior, Customize Code of Conduct, Automated text message notifications, Label behavior with location and consequences

**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 Behavior Reporting free?

Behavior Reporting is free to download, with no in-app purchases.

### Which has better reviews, Complex RPN Calculator or Behavior Reporting?

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

### Do Complex RPN Calculator or Behavior Reporting have ads?

Neither Complex RPN Calculator nor Behavior Reporting shows ads.

### Which is updated more often, Complex RPN Calculator or Behavior Reporting?

Complex RPN Calculator ships an update every 5 months, and Behavior Reporting every 4 weeks. Most recently, Complex RPN Calculator was updated on October 31, 2026 and Behavior Reporting on November 3, 2026.

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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.*