# Calculate Standard Deviation vs Rounding Calculator

The clearest difference is update cadence: Rounding Calculator at every 2 months against Calculate Standard Deviation's every 7 months. Rounding Calculator also leads on iOS requirement (12.0 vs 15.0). Calculate Standard Deviation's advantage is ratings volume (62 vs 7). On price, rating, ads and in-app purchases there is nothing between them.

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

On the App Store both sit at effectively the same score — 4.5 for Calculate Standard Deviation against 4.6 for Rounding Calculator. That said, the two scores are not equally well evidenced: Calculate Standard Deviation has 62 ratings behind it against 7, so its average is the more settled of the two.

Calculate Standard Deviation ships an update every 7 months, Rounding Calculator every 2 months. The most recent releases landed on September 22, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | Calculate Standard Deviation | Rounding Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (62 ratings)](https://appshunter.io/ios/app/calculate-standard-deviation/id1591420646/reviews) | **[4.6 (7 ratings)](https://appshunter.io/ios/app/rounding-calculator/id1621082259/reviews)** |
| Number of ratings | **62** | 7 |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 7 months | **Every 2 months** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 39 MB | 34 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Asad Ahsan](https://appshunter.io/developer/1326954499) | [talha rehman](https://appshunter.io/developer/1573036144) |

## What reviewers say

### Calculate Standard Deviation

[App page](https://appshunter.io/ios/app/calculate-standard-deviation/id1591420646)

This app calculates standard deviation, variance, and other statistical measures for a given set of values. It simplifies complex statistical formulas with a user-friendly interface and accurate results.

**Highlights:** Calculate Standard Deviation, Calculate Variance, Calculate Mean, Calculate Coefficient of Variance, Calculate Standard Error of Mean, User-friendly interface, Accurate statistical results

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Standard Deviation Premium | $4.99 | one-time |


### Rounding Calculator

[App page](https://appshunter.io/ios/app/rounding-calculator/id1621082259)

Easily round large or decimal numbers to the nearest whole number or specified value. This app simplifies complex calculations with a smooth interface, saving you time on math problems.

**Highlights:** Round large numbers, Round decimal numbers, Auto calculation with rounding formula, Easy user interface, Quickly find rounding values, Supports numbers up to 1,000,000s

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Gets Ads Free Version | $2.99 | one-time |


## Frequently asked questions

### Is Calculate Standard Deviation free?

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

### Is Rounding Calculator free?

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

### Which has better reviews, Calculate Standard Deviation or Rounding Calculator?

Rounding Calculator is rated higher. Calculate Standard Deviation averages 4.5 out of 5 from 62 ratings, while Rounding Calculator averages 4.6 from 7 ratings.

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

Both Calculate Standard Deviation and Rounding Calculator show ads.

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

Calculate Standard Deviation ships an update every 7 months, and Rounding Calculator every 2 months. Most recently, Calculate Standard Deviation was updated on September 22, 2026 and Rounding Calculator on September 17, 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.*