# Formulize vs Combinations & Probabilities

The clearest difference is iOS requirement: Formulize at 17.5 against Combinations & Probabilities's 26.0. On price and in-app purchases there is nothing between them.

Both are free to download. Formulize sells 1 one-off in-app purchase and Combinations & Probabilities sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Formulize | Combinations & Probabilities |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | — | Yes |
| Update frequency | — | Weekly |
| Size | 30 MB | 33 MB |
| Requires iOS | **17.5** | 26.0 |
| Devices | — | **iPhone** |
| Age rating | 4+ | +4 |
| Developer | [Morten Gregersen](https://appshunter.io/developer/414244543) | [Joao Carrion](https://appshunter.io/developer/1044104256) |

## What reviewers say

### Formulize

[App page](https://appshunter.io/ios/app/formulize/id6503178796)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Formulize Pro | $2.99 | one-time |


### Combinations & Probabilities

[App page](https://appshunter.io/ios/app/combinations-and-probabilities/id6758729922)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| C&P Pro | $2.99 | one-time |


## Frequently asked questions

### Is Formulize free?

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

### Is Combinations & Probabilities free?

Combinations & Probabilities is free to download, with in-app purchases available.

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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.*