# RPN vs Chessconnect

The clearest difference is price: Chessconnect at Free against RPN's $2.99. Chessconnect also leads on rating (5.0 vs 4.3) and review sentiment (100% vs 80%). RPN's advantage is in-app purchases (none vs 4) and iOS requirement (12.0 vs 16.4). On ratings volume, update cadence, ads and device support there is nothing between them.

Chessconnect is free to download; RPN costs $2.99 up front. Chessconnect sells 4 one-off in-app purchases. RPN asks for nothing beyond the download.

Chessconnect holds the better App Store score, 5.0 against 4.3. Both are backed by a comparable volume of ratings — 10 and 8 respectively. Written reviews point the same way: 80% of RPN's written reviews are positive against 100% of Chessconnect's.

RPN ships an update every 2 months, Chessconnect every 5 weeks. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | RPN | Chessconnect |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | [4.3 (10 ratings)](https://appshunter.io/ios/app/rpn-25-ce/id1529311398/reviews) | **[5.0 (8 ratings)](https://appshunter.io/ios/app/chessconnect/id6747821027/reviews)** |
| Number of ratings | **10** | 8 |
| Positive reviews | 80.0% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 5 weeks** |
| Monetization | Paid | **Free** |
| Size | 28 MB | 13 MB |
| Requires iOS | **12.0** | 16.4 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [CuVee Software](https://appshunter.io/developer/424873503) | [JORN DR. GEHRING](https://appshunter.io/developer/1822998188) |

## 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


### Chessconnect

[App page](https://appshunter.io/ios/app/chessconnect/id6747821027)

Connect your electronic chessboard to your mobile device for an enhanced online chess experience. Play on major platforms, enjoy full game features, and utilize board-specific enhancements.

**Highlights:** Connect electronic chessboards to mobile, Seamless integration with Chess.com, Lichess.org, and more, Play against bots or human opponents, Supports Chess960, Enhanced gameplay features, Wide electronic board compatibility

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| English Breakfast | $3.99 | one-time |
| Darjeeling | $8.99 | one-time |
| Earl Grey | $22.99 | one-time |
| Chai Latte | $44.99 | one-time |


## Frequently asked questions

### Is RPN free?

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

### Is Chessconnect free?

Chessconnect is free to download, with in-app purchases available.

### Which has better reviews, RPN or Chessconnect?

Chessconnect is rated higher. RPN averages 4.3 out of 5 from 10 ratings, while Chessconnect averages 5.0 from 8 ratings.

### Do RPN or Chessconnect have ads?

Neither RPN nor Chessconnect shows ads.

### Which is updated more often, RPN or Chessconnect?

RPN ships an update every 2 months, and Chessconnect every 5 weeks. Most recently, RPN was updated on November 3, 2026 and Chessconnect on October 30, 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.*