# Calculate Standard Deviation vs Statistics Formulas

The clearest difference is ads: Statistics Formulas at none against Calculate Standard Deviation's shown. Statistics Formulas also leads on update cadence (every 3 days vs every 7 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Calculate Standard Deviation sells 1 one-off in-app purchase and Statistics Formulas sells 7 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Calculate Standard Deviation ships an update every 7 months, Statistics Formulas every 3 days. The most recent releases landed on September 22, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Calculate Standard Deviation | Statistics Formulas |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (62 ratings)](https://appshunter.io/ios/app/calculate-standard-deviation/id1591420646/reviews)** | — |
| Number of ratings | **62** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 7 months | **Every 3 days** |
| Monetization | Free with in-app purchases | — |
| Size | 39 MB | 23 MB |
| Requires iOS | **15.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Asad Ahsan](https://appshunter.io/developer/1326954499) | [NovaNext](https://appshunter.io/developer/1285557502) |

## 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 |


### Statistics Formulas

[App page](https://appshunter.io/ios/app/statistics-formulas/id6447047160)

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Coffee | $0.99 | one-time |
| Remove Ads | $0.99 | one-time |
| Donate $3 | $2.99 | one-time |
| Donate $5 | $4.99 | one-time |
| Donate $10 | $9.99 | one-time |
| Donate $15 | $14.99 | one-time |
| Donate $20 | $19.99 | one-time |


## Frequently asked questions

### Is Calculate Standard Deviation free?

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

### Is Statistics Formulas free?

Statistics Formulas is free to download, with in-app purchases available.

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

Calculate Standard Deviation shows ads; Statistics Formulas does not.

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

Calculate Standard Deviation ships an update every 7 months, and Statistics Formulas every 3 days. Most recently, Calculate Standard Deviation was updated on September 22, 2026 and Statistics Formulas on September 21, 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.*