# Standard Deviation Calc vs Standard Deviation Calculate

The clearest difference is rating: Standard Deviation Calculate at 4.3 against Standard Deviation Calc's 3.7. Standard Deviation Calculate also leads on monetization model (free vs free with in-app purchases) and update cadence (every 2 months vs every 5 months). Standard Deviation Calc's advantage is ratings volume (11 vs 3). On price, ads, in-app purchases and device support there is nothing between them.

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

Standard Deviation Calculate holds the better App Store score, 4.3 against 3.7. Both are backed by a comparable volume of ratings — 11 and 3 respectively.

Standard Deviation Calc ships an update every 5 months, Standard Deviation Calculate every 2 months. The most recent releases landed on September 21, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | Standard Deviation Calc | Standard Deviation Calculate |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.7 (11 ratings)](https://appshunter.io/ios/app/standard-deviation-calc-sd/id1497525733/reviews) | **[4.3 (3 ratings)](https://appshunter.io/ios/app/standard-deviation-calculate/id1600862053/reviews)** |
| Number of ratings | **11** | 3 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 2 months** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 2 MB | 5 MB |
| Requires iOS | 14.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Phan Nhat Đang](https://appshunter.io/developer/1437390098) | [天一 邓](https://appshunter.io/developer/1056154014) |

## What reviewers say

### 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 |


### Standard Deviation Calculate

[App page](https://appshunter.io/ios/app/standard-deviation-calculate/id1600862053)

This utility calculates the standard deviation of a dataset, a key statistical measure of data dispersion. It helps understand how spread out values are from the average, with applications in science, industry, and finance.

**Highlights:** Calculate standard deviation, Measure data dispersion, Understand variation from mean, Applications in science and finance, Statistical analysis tool

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 标准差计算器专业版 | $2.99 | one-time |


## Frequently asked questions

### Is Standard Deviation Calc free?

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

### Is Standard Deviation Calculate free?

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

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

Standard Deviation Calculate is rated higher. Standard Deviation Calc averages 3.7 out of 5 from 11 ratings, while Standard Deviation Calculate averages 4.3 from 3 ratings.

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

Neither Standard Deviation Calc nor Standard Deviation Calculate shows ads.

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

Standard Deviation Calc ships an update every 5 months, and Standard Deviation Calculate every 2 months. Most recently, Standard Deviation Calc was updated on September 21, 2026 and Standard Deviation Calculate on September 28, 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.*