# Statistics Calculator+++ vs OpenRadiation

The clearest difference is review sentiment: Statistics Calculator+++ at 73% against OpenRadiation's 0%. Statistics Calculator+++ also leads on rating (4.3 vs 2.0) and ratings volume (46 vs 4). OpenRadiation's advantage is price (Free vs $2.99) and update cadence (every 3 months vs every 13 months). On ads, in-app purchases and iOS requirement there is nothing between them.

OpenRadiation is free to download; Statistics Calculator+++ costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Statistics Calculator+++ holds the better App Store score, 4.3 against 2.0. That said, the two scores are not equally well evidenced: Statistics Calculator+++ has 46 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 73% of Statistics Calculator+++'s written reviews are positive against 0% of OpenRadiation's.

Statistics Calculator+++ ships an update every 13 months, OpenRadiation every 3 months. The most recent releases landed on September 10, 2026 and June 1, 2026 respectively.

## The numbers

| Metric | Statistics Calculator+++ | OpenRadiation |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[4.3 (46 ratings)](https://appshunter.io/ios/app/statistics-calculator-plus-plus-plus/id568120619/reviews)** | [2.0 (4 ratings)](https://appshunter.io/ios/app/openradiation/id1246249831/reviews) |
| Number of ratings | **46** | 4 |
| Positive reviews | **73.3% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 13 months | **Every 3 months** |
| Monetization | Paid | **Free** |
| Size | 4 MB | 54 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Dogahe](https://appshunter.io/developer/468657946) | [Autorite de surete nucleaire et de radioprotection](https://appshunter.io/developer/1861431469) |

## What reviewers say

### Statistics Calculator+++

[App page](https://appshunter.io/ios/app/statistics-calculator-plus-plus-plus/id568120619)

Perform advanced statistical calculations, including regression analysis, probability distributions, and hypothesis tests. Easily input data, visualize results with plots, and import data from spreadsheets. Offers a user-friendly interface for complex statistical operations.

**Highlights:** Statistical calculations, Regression analysis, Probability distributions, Confidence intervals, Hypothesis tests, Data visualization plots, Import data from CSV

**In-app purchases:** none


### OpenRadiation

[App page](https://appshunter.io/ios/app/openradiation/id1246249831)

Measure ambient radioactivity levels and assess your exposure to ionizing radiation using a compatible sensor. Contribute to a citizen science project by sharing your measurements to build a collaborative database.

**Highlights:** Measure radioactivity levels, Assess radiation exposure, Contribute to citizen science, Collaborative data database, Share measurements, View data online

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Statistics Calculator+++ free?

Statistics Calculator+++ costs $2.99, with no in-app purchases.

### Is OpenRadiation free?

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

### Which has better reviews, Statistics Calculator+++ or OpenRadiation?

Statistics Calculator+++ is rated higher. Statistics Calculator+++ averages 4.3 out of 5 from 46 ratings, while OpenRadiation averages 2.0 from 4 ratings.

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

Neither Statistics Calculator+++ nor OpenRadiation shows ads.

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

Statistics Calculator+++ ships an update every 13 months, and OpenRadiation every 3 months. Most recently, Statistics Calculator+++ was updated on September 10, 2026 and OpenRadiation on June 1, 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.*