# RPN vs Statistics Calculator++

The clearest difference is review sentiment: Statistics Calculator++ at 63% against RPN's 0%. Statistics Calculator++ also leads on in-app purchases (none vs 1). RPN's advantage is price (Free vs $0.99). On update cadence, ads, monetization model and device support there is nothing between them.

RPN is free to download; Statistics Calculator++ costs $0.99 up front. RPN sells 1 one-off in-app purchase. Statistics Calculator++ asks for nothing beyond the download.

RPN ships an update monthly, Statistics Calculator++ every 3 weeks. The most recent releases landed on October 19, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | RPN | Statistics Calculator++ |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | — | **[4.1 (309 ratings)](https://appshunter.io/ios/app/statistics-calculator-plus-plus/id539195343/reviews)** |
| Number of ratings | — | **309** |
| Positive reviews | 0.0% of reviews | **62.5% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 5 MB | 4 MB |
| Requires iOS | 16.6 | **15.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Tomas Stankiewicz Baldassarri](https://appshunter.io/developer/452519243) | [Dogahe](https://appshunter.io/developer/468657946) |

## What reviewers say

### RPN

[App page](https://appshunter.io/ios/app/rpn/id452519240)

This utility app functions as a reverse Polish notation calculator. Users input numbers and operations using a stack-based interface to perform calculations. It's designed for straightforward mathematical tasks.

**Highlights:** Reverse Polish Notation (RPN) input, Stack-based operation, Intuitive digit and operation buttons, Clear result display

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Stack LCD | $0.49 | one-time |


### Statistics Calculator++

[App page](https://appshunter.io/ios/app/statistics-calculator-plus-plus/id539195343)

Perform advanced statistical analysis, including regression and probability distributions, with ease. Visualize data through plots and tables, and save or import datasets from spreadsheets. Offers a wide range of calculations beyond core statistics.

**Highlights:** Data entry and analysis table, Box and whisker plots and histograms, Linear, logarithmic, exponential, power, quadratic regressions, Save and import data from Excel/Numbers, Normal, t, Chi-Squared, F, Binomial, Poisson distributions, Confidence intervals and hypothesis tests, Fraction manipulation, angle conversions, solvers

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use and intuitive interface
- 📊 Comprehensive statistics and regression functionality
- 💰 Affordable pricing
- 🎨 Good visual design and graphics
- 📈 Multiple regression models available

**What reviewers complain about**

- 🐛 App freezes during use
- ❌ Limited equation/function options
- 🧭 Poor navigation and confusing layout
- 📖 Lack of clear instructions or user manual
- 💳 Additional in-app purchases required for full features

**Reported bugs**

- App freezes after brief use
- Statistics section won't open
- Incompatibility with iOS 7
- Random number generator produces predetermined sequences
- Landscape/portrait mode switching issues

**Requested features**

- User manual or tutorial documentation
- Ability to input custom quantiles and critical values
- Support for Z-score input in normal distribution
- Streamlined data clearing process
- Quadratic and advanced regression options


## Frequently asked questions

### Is RPN free?

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

### Is Statistics Calculator++ free?

Statistics Calculator++ costs $0.99, with no in-app purchases.

### Do RPN or Statistics Calculator++ have ads?

Neither RPN nor Statistics Calculator++ shows ads.

### Which is updated more often, RPN or Statistics Calculator++?

RPN ships an update monthly, and Statistics Calculator++ every 3 weeks. Most recently, RPN was updated on October 19, 2026 and Statistics Calculator++ on October 29, 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.*