# Standard Deviation Calculator vs Standard Deviation Calc

The clearest difference is rating: Standard Deviation Calc at 3.7 against Standard Deviation Calculator's 2.4. Standard Deviation Calculator's advantage is review sentiment (20% vs 0%) and update cadence (every 5 weeks vs every 5 months). On price, ratings volume, ads and in-app purchases there is nothing between them.

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

Standard Deviation Calc holds the better App Store score, 3.7 against 2.4. Both are backed by a comparable volume of ratings — 24 and 11 respectively. Written reviews complicate that: 20% of Standard Deviation Calculator's written reviews are positive against 0% of Standard Deviation Calc's, so the app with the better star average is not the one people write more warmly about.

Standard Deviation Calculator ships an update every 5 weeks, Standard Deviation Calc every 5 months. The most recent releases landed on October 4, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Standard Deviation Calculator | Standard Deviation Calc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.4 (24 ratings)](https://appshunter.io/ios/app/standard-deviation-calculator/id721321543/reviews) | **[3.7 (11 ratings)](https://appshunter.io/ios/app/standard-deviation-calc-sd/id1497525733/reviews)** |
| Number of ratings | **24** | 11 |
| Positive reviews | **20.0% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 5 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 2 MB | 2 MB |
| Requires iOS | **6.1** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Keely Hill](https://appshunter.io/developer/1039644107) | [Phan Nhat Đang](https://appshunter.io/developer/1437390098) |

## 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 |


### Standard Deviation Calc

[App page](https://appshunter.io/ios/app/standard-deviation-calc-sd/id1497525733)

Calculate standard deviation for sample or population data. Input numerical values to find standard deviation, count, sum, mean, variance, and more. Get quick statistical insights with this easy-to-use tool.

**Highlights:** Calculate standard deviation, Sample or population data, Compute mean and variance, Count numerical values, Sum of numbers, List of differences

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove ads | $1.99 | one-time |


## Frequently asked questions

### Is Standard Deviation Calculator free?

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

### Is Standard Deviation Calc free?

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

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

Standard Deviation Calc is rated higher. Standard Deviation Calculator averages 2.4 out of 5 from 24 ratings, while Standard Deviation Calc averages 3.7 from 11 ratings.

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

Neither Standard Deviation Calculator nor Standard Deviation Calc shows ads.

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

Standard Deviation Calculator ships an update every 5 weeks, and Standard Deviation Calc every 5 months. Most recently, Standard Deviation Calculator was updated on October 4, 2026 and Standard Deviation Calc on October 8, 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.*