# Calculate Standard Deviation vs Binomial Distribution Calc

The clearest difference is ads: Binomial Distribution Calc at none against Calculate Standard Deviation's shown. Binomial Distribution Calc also leads on update cadence (every 3 weeks 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 Binomial Distribution Calc sells 8 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, Binomial Distribution Calc every 3 weeks. The most recent releases landed on September 22, 2026 and August 15, 2026 respectively.

## The numbers

| Metric | Calculate Standard Deviation | Binomial Distribution Calc |
| --- | --- | --- |
| 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 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 39 MB | 180 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Asad Ahsan](https://appshunter.io/developer/1326954499) | [Glindemann, Sennoun, Langer GbR](https://appshunter.io/developer/1024972809) |

## 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 |


### Binomial Distribution Calc

[App page](https://appshunter.io/ios/app/binomial-distribution-calc/id6472449122)

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| +30 User Tokens | $0.29 | one-time |
| +1 Convenience Token / 6h, max. +2 | $0.59 | one-time |
| +2 Convenience Tokens / 6h, max. +4 | $0.99 | one-time |
| +150 User Tokens | $0.99 | one-time |
| +300 User Tokens | $1.49 | one-time |
| +4 Convenience Tokens / 6h, max. +8 | $1.59 | one-time |
| Lifetime Access | $1.99 | one-time |
| Remove Ads | $1.99 | one-time |


## Frequently asked questions

### Is Calculate Standard Deviation free?

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

### Is Binomial Distribution Calc free?

Binomial Distribution Calc is free to download, with in-app purchases available.

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

Calculate Standard Deviation shows ads; Binomial Distribution Calc does not.

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

Calculate Standard Deviation ships an update every 7 months, and Binomial Distribution Calc every 3 weeks. Most recently, Calculate Standard Deviation was updated on September 22, 2026 and Binomial Distribution Calc on August 15, 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.*