# RPN vs Statistics Calculation

The clearest difference is price: Statistics Calculation at Free against RPN's $1.99. Statistics Calculation also leads on update cadence (fortnightly vs every 3 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Statistics Calculation is free to download; RPN costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

RPN ships an update every 3 months, Statistics Calculation fortnightly. The most recent releases landed on September 25, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | RPN | Statistics Calculation |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[5.0 (8 ratings)](https://appshunter.io/ios/app/rpn-55-sd/id1469907917/reviews)** | — |
| Number of ratings | **8** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Fortnightly** |
| Monetization | Paid | — |
| Size | 17 MB | 31 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [CuVee Software](https://appshunter.io/developer/424873503) | [Ashvin Kevadiya](https://appshunter.io/developer/1756324971) |

## What reviewers say

### 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


### Statistics Calculation

[App page](https://appshunter.io/ios/app/statistics-calculation/id6739030466)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is RPN free?

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

### Is Statistics Calculation free?

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

### Do RPN or Statistics Calculation have ads?

Neither RPN nor Statistics Calculation shows ads.

### Which is updated more often, RPN or Statistics Calculation?

RPN ships an update every 3 months, and Statistics Calculation fortnightly. Most recently, RPN was updated on September 25, 2026 and Statistics Calculation on September 14, 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.*