# Stats & Probability Calculator vs Simplex

The clearest difference is ads: Stats & Probability Calculator at none against Simplex's shown. Stats & Probability Calculator also leads on iOS requirement (16.6 vs 26.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Stats & Probability Calculator sells 3 in-app purchases, starting at $0.99 per month and Simplex sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Stats & Probability Calculator | Simplex |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 4 months | — |
| Size | 27 MB | 5 MB |
| Requires iOS | **16.6** | 26.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Vladislav Zhirnov](https://appshunter.io/developer/1476188065) | [Fernando Castillo](https://appshunter.io/developer/1787896193) |

## What reviewers say

### Stats & Probability Calculator

[App page](https://appshunter.io/ios/app/stats-and-probability-calculator/id6748586083)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full version / monthly | $0.99 | per month |
| Full version / year | $2.99 | per year |
| Remove ADS | $3.99 | one-time |


### Simplex

[App page](https://appshunter.io/ios/app/simplex-linear-optimization/id6783993836)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Simplex Premium | $1.99 | one-time |


## Frequently asked questions

### Is Stats & Probability Calculator free?

Stats & Probability Calculator is free to download, with in-app purchases available.

### Is Simplex free?

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

### Do Stats & Probability Calculator or Simplex have ads?

Simplex shows ads; Stats & Probability Calculator does not.

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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.*