# Standard Deviation vs Fractions Maths Pro

The clearest difference is in-app purchases: Standard Deviation at none against Fractions Maths Pro's 4. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Fractions Maths Pro sells 4 in-app purchases, starting at $0.99 per 7 days. Standard Deviation asks for nothing beyond the download.

## The numbers

| Metric | Standard Deviation | Fractions Maths Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/standard-deviation-calculator/id6444146244/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | — |
| Size | 21 MB | 44 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ahmad Sattar](https://appshunter.io/developer/1458483953) | [Shital Gorasiya](https://appshunter.io/developer/1737199158) |

## What reviewers say

### Standard Deviation

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

**In-app purchases:** none


### Fractions Maths Pro

[App page](https://appshunter.io/ios/app/fractions-maths-pro/id6569234844)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium | $0.99 | per 7 days |
| Monthly Premium | $1.99 | per month |
| Yearly Premium | $5.99 | per year |
| Lifetime Premium | $9.99 | one-time |


## Frequently asked questions

### Is Standard Deviation free?

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

### Is Fractions Maths Pro free?

Fractions Maths Pro is free to download, with in-app purchases available.

### Do Standard Deviation or Fractions Maths Pro have ads?

Neither Standard Deviation nor Fractions Maths Pro shows ads.

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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.*