# RPN vs Bode Plot App

The clearest difference is price: Bode Plot App at Free against RPN's $2.99. RPN's advantage is update cadence (every 2 months vs every 5 months) and iOS requirement (12.0 vs 26.2). On ads, in-app purchases and device support there is nothing between them.

Bode Plot App is free to download; RPN costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

RPN ships an update every 2 months, Bode Plot App every 5 months. The most recent releases landed on November 11, 2026 and November 13, 2026 respectively.

## The numbers

| Metric | RPN | Bode Plot App |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[4.3 (10 ratings)](https://appshunter.io/ios/app/rpn-25-ce/id1529311398/reviews)** | — |
| Number of ratings | **10** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 5 months |
| Monetization | Paid | — |
| Size | 28 MB | 1 MB |
| Requires iOS | **12.0** | 26.2 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [CuVee Software](https://appshunter.io/developer/424873503) | [Yuta Nishimatsu](https://appshunter.io/developer/1480004995) |

## What reviewers say

### RPN

[App page](https://appshunter.io/ios/app/rpn-25-ce/id1529311398)

This app is a photo-realistic simulation of the classic HP-25 scientific calculator. It offers advanced programming features, a vast function library, and modern enhancements for enhanced usability on iOS devices.

**Highlights:** Photo-realistic simulation, Programmable (99/999 steps), 15 user-defined function keys, 100 symbolic labels, 100 visible registers, Program library with 150+ programs, Over 270 functions

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Bode Plot App

[App page](https://appshunter.io/ios/app/bode-plot-app/id6756905343)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is RPN free?

RPN costs $2.99, with no in-app purchases.

### Is Bode Plot App free?

Bode Plot App is free to download, with no in-app purchases.

### Do RPN or Bode Plot App have ads?

Neither RPN nor Bode Plot App shows ads.

### Which is updated more often, RPN or Bode Plot App?

RPN ships an update every 2 months, and Bode Plot App every 5 months. Most recently, RPN was updated on November 11, 2026 and Bode Plot App on November 13, 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.*