# Standard Deviation Calculate vs Standard Deviation

The clearest difference is in-app purchases: Standard Deviation at none against Standard Deviation Calculate's 1. Standard Deviation Calculate's advantage is iOS requirement (11.0 vs 13.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Standard Deviation Calculate sells 1 one-off in-app purchase. Standard Deviation asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on September 28, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | Standard Deviation Calculate | Standard Deviation |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (3 ratings)](https://appshunter.io/ios/app/standard-deviation-calculate/id1600862053/reviews)** | — |
| Number of ratings | **3** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Free | — |
| Size | 5 MB | 21 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [天一 邓](https://appshunter.io/developer/1056154014) | [Ahmad Sattar](https://appshunter.io/developer/1458483953) |

## What reviewers say

### 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 |


### Standard Deviation

[App page](https://appshunter.io/ios/app/standard-deviation-calculator/id6444146244)

**In-app purchases:** none


## Frequently asked questions

### Is Standard Deviation Calculate free?

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

### Is Standard Deviation free?

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

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

Neither Standard Deviation Calculate nor Standard Deviation shows ads.

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

Standard Deviation Calculate ships an update every 2 months, and Standard Deviation every 2 months. Most recently, Standard Deviation Calculate was updated on September 28, 2026 and Standard Deviation on September 12, 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.*