# Standard Deviation Calculator vs Statistics Calculator

The clearest difference is rating: Statistics Calculator at 4.4 against Standard Deviation Calculator's 2.4. Statistics Calculator also leads on review sentiment (57% vs 20%) and ratings volume (317 vs 24). Standard Deviation Calculator's advantage is update cadence (every 5 weeks vs every 21 months) and iOS requirement (6.1 vs 15.6). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Standard Deviation Calculator sells 1 one-off in-app purchase and Statistics Calculator sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Statistics Calculator holds the better App Store score, 4.4 against 2.4. That said, the two scores are not equally well evidenced: Statistics Calculator has 317 ratings behind it against 24, so its average is the more settled of the two. Written reviews point the same way: 20% of Standard Deviation Calculator's written reviews are positive against 57% of Statistics Calculator's.

Standard Deviation Calculator ships an update every 5 weeks, Statistics Calculator every 21 months. The most recent releases landed on October 12, 2026 and October 23, 2026 respectively.

## The numbers

| Metric | Standard Deviation Calculator | Statistics Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.4 (24 ratings)](https://appshunter.io/ios/app/standard-deviation-calculator/id721321543/reviews) | **[4.4 (317 ratings)](https://appshunter.io/ios/app/statistics-calculator/id1185124478/reviews)** |
| Number of ratings | 24 | **317** |
| Positive reviews | 20.0% of reviews | **57.1% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 21 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 2 MB | 4 MB |
| Requires iOS | **6.1** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Keely Hill](https://appshunter.io/developer/1039644107) | [Dogahe](https://appshunter.io/developer/468657946) |

## What reviewers say

### Standard Deviation Calculator

[App page](https://appshunter.io/ios/app/standard-deviation-calculator/id721321543)

Calculate statistical measures like standard deviation, mean, variance, and median for a dataset. It also offers population deviation and the ability to compute z-scores based on your input data.

**Highlights:** Calculate standard deviation, Calculate mean (average), Calculate variance, Calculate population deviation, Calculate median, Calculate Q1 & Q3, Calculate z-score

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| More Results | Free | one-time |


### Statistics Calculator

[App page](https://appshunter.io/ios/app/statistics-calculator/id1185124478)

This app provides essential statistical calculations and regression analysis with an intuitive interface. Easily input data, view statistical measures, and perform various regression models. Advanced features are unlocked via in-app purchases.

**Highlights:** List data entry and management, Basic statistical measures (mean, std dev, etc.), Linear, logarithmic, exponential, power regression, Regression model graphing, Probability distributions, Confidence intervals, Hypothesis tests

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Access - All Features | $2.99 | one-time |
| Statistics Calculator++ | $2.99 | one-time |


## Frequently asked questions

### Is Standard Deviation Calculator free?

Standard Deviation Calculator is free to download, with in-app purchases available.

### Is Statistics Calculator free?

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

### Which has better reviews, Standard Deviation Calculator or Statistics Calculator?

Statistics Calculator is rated higher. Standard Deviation Calculator averages 2.4 out of 5 from 24 ratings, while Statistics Calculator averages 4.4 from 317 ratings.

### Do Standard Deviation Calculator or Statistics Calculator have ads?

Neither Standard Deviation Calculator nor Statistics Calculator shows ads.

### Which is updated more often, Standard Deviation Calculator or Statistics Calculator?

Standard Deviation Calculator ships an update every 5 weeks, and Statistics Calculator every 21 months. Most recently, Standard Deviation Calculator was updated on October 12, 2026 and Statistics Calculator on October 23, 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.*