# MorseMorse vs Modern RPN

The clearest difference is price: MorseMorse at Free against Modern RPN's $2.99. MorseMorse also leads on iOS requirement (16 vs 26.2). Modern RPN's advantage is update cadence (every 5 days vs every 6 weeks). On ads, in-app purchases and device support there is nothing between them.

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

MorseMorse ships an update every 6 weeks, Modern RPN every 5 days. The most recent releases landed on October 25, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | MorseMorse | Modern RPN |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/modern-rpn/id6760340697/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 5 days** |
| Monetization | — | Paid |
| Size | 2 MB | 2 MB |
| Requires iOS | **16** | 26.2 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Lite Guo](https://appshunter.io/developer/1848261172) | [Kevin Flathers](https://appshunter.io/developer/1883973737) |

## What reviewers say

### MorseMorse

[App page](https://appshunter.io/ios/app/morsemorse/id6754429677)

**Features:** macOS Compatibility

**In-app purchases:** none


### Modern RPN

[App page](https://appshunter.io/ios/app/modern-rpn/id6760340697)

A minimalist reverse Polish notation calculator for iOS devices. It offers Standard, Binary, and Hex modes for quick calculations and programmer-friendly conversions, featuring a clean interface and a 4-level stack.

**Highlights:** Reverse Polish Notation (RPN) input, Standard, Binary, and Hex modes, 4-level visible stack, Calculation history, Saved session state, Clean dark interface

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is MorseMorse free?

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

### Is Modern RPN free?

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

### Do MorseMorse or Modern RPN have ads?

Neither MorseMorse nor Modern RPN shows ads.

### Which is updated more often, MorseMorse or Modern RPN?

MorseMorse ships an update every 6 weeks, and Modern RPN every 5 days. Most recently, MorseMorse was updated on October 25, 2026 and Modern RPN on October 28, 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.*