# iBeams Pro vs RPN

The clearest difference is price: RPN at $1.99 against iBeams Pro's $21.99. RPN also leads on rating (5.0 vs 3.7) and iOS requirement (12.0 vs 17.0). On review sentiment, ratings volume, update cadence and ads there is nothing between them.

iBeams Pro costs $21.99 and RPN $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

RPN holds the better App Store score, 5.0 against 3.7. Both are backed by a comparable volume of ratings — 6 and 8 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

iBeams Pro ships an update every 4 months, RPN every 3 months. The most recent releases landed on October 23, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | iBeams Pro | RPN |
| --- | --- | --- |
| Price | $21.99 | **$1.99** |
| Rating | [3.7 (6 ratings)](https://appshunter.io/ios/app/ibeams-pro/id618700117/reviews) | **[5.0 (8 ratings)](https://appshunter.io/ios/app/rpn-55-sd/id1469907917/reviews)** |
| Number of ratings | 6 | **8** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 months** |
| Monetization | Paid | Paid |
| Size | 12 MB | 17 MB |
| Requires iOS | 17.0 | **12.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Norm Schuster](https://appshunter.io/developer/398882205) | [CuVee Software](https://appshunter.io/developer/424873503) |

## What reviewers say

### iBeams Pro

[App page](https://appshunter.io/ios/app/ibeams-pro/id618700117)

This app allows engineers to quickly sketch beam designs and instantly view analysis diagrams for shear, moment, and deflection. It offers rapid modification and analysis, streamlining the design process for structural elements. The file format is compatible with its macOS counterpart.

**Highlights:** Instant shear, moment, and deflection diagrams, Sketch beam and loads like on a pad, Rapid modification and analysis, Imperial and S.I. units, Editable material and section properties, Cloud document storage

**Features:** Vision Pro support

**In-app purchases:** none


### RPN

[App page](https://appshunter.io/ios/app/rpn-55-sd/id1469907917)

This app is a photo-realistic simulation of a classic Hewlett-Packard programmable scientific calculator from the 1970s. It includes a 100-hour digital timer, clock functions, and original HP programs.

**Highlights:** Photo-realistic look-and-feel, Programmable with conditional branching, 100-hr timer and 12/24-hr clock, Original HP programs built-in, Extended features for enhanced usability, Sharing via email, AirDrop, and more

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is iBeams Pro free?

iBeams Pro costs $21.99, with no in-app purchases.

### Is RPN free?

RPN costs $1.99, with no in-app purchases.

### Which has better reviews, iBeams Pro or RPN?

RPN is rated higher. iBeams Pro averages 3.7 out of 5 from 6 ratings, while RPN averages 5.0 from 8 ratings.

### Do iBeams Pro or RPN have ads?

Neither iBeams Pro nor RPN shows ads.

### Which is updated more often, iBeams Pro or RPN?

iBeams Pro ships an update every 4 months, and RPN every 3 months. Most recently, iBeams Pro was updated on October 23, 2026 and RPN on October 31, 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.*