# bcRPN vs Modern RPN

The clearest difference is price: bcRPN at Free against Modern RPN's $2.99. bcRPN also leads on ratings volume (8 vs 1) and iOS requirement (15.0 vs 26.2). Modern RPN's advantage is update cadence (every 5 days vs every 22 months) and review sentiment (100% vs 80%). On ads, in-app purchases and device support there is nothing between them.

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

Modern RPN holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: bcRPN has 8 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 80% of bcRPN's written reviews are positive against 100% of Modern RPN's.

bcRPN ships an update every 22 months, Modern RPN every 5 days. The most recent releases landed on October 24, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | bcRPN | Modern RPN |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | [4.8 (8 ratings)](https://appshunter.io/ios/app/bcrpn/id1614744829/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/modern-rpn/id6760340697/reviews)** |
| Number of ratings | **8** | 1 |
| Positive reviews | 80.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 22 months | **Every 5 days** |
| Monetization | **Free** | Paid |
| Size | 0 MB | 2 MB |
| Requires iOS | **15.0** | 26.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Paul Wilkins](https://appshunter.io/developer/1614739840) | [Kevin Flathers](https://appshunter.io/developer/1883973737) |

## What reviewers say

### bcRPN

[App page](https://appshunter.io/ios/app/bcrpn/id1614744829)

This utility app functions as a Reverse Polish Notation calculator. It handles complex numbers and utilizes extended precision for all calculations, offering an unlimited stack depth and an undo feature for up to 10 operations.

**Highlights:** Reverse Polish Notation (RPN) input, Complex number calculations, Extended precision math, Unlimited stack depth, Undo functionality (up to 10 operations)

**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 bcRPN free?

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

### Is Modern RPN free?

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

### Which has better reviews, bcRPN or Modern RPN?

Modern RPN is rated higher. bcRPN averages 4.8 out of 5 from 8 ratings, while Modern RPN averages 5.0 from 1 ratings.

### Do bcRPN or Modern RPN have ads?

Neither bcRPN nor Modern RPN shows ads.

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

bcRPN ships an update every 22 months, and Modern RPN every 5 days. Most recently, bcRPN was updated on October 24, 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.*