# Brainy Learning vs Probability Theory Foundations

The clearest difference is in-app purchases: Probability Theory Foundations at none against Brainy Learning's 4. Brainy Learning's advantage is iOS requirement (13.0 vs 15.1). On price, ads and device support there is nothing between them.

Both are free to download. Brainy Learning sells 4 in-app purchases, starting at $9.99 per month. Probability Theory Foundations asks for nothing beyond the download.

## The numbers

| Metric | Brainy Learning | Probability Theory Foundations |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 weeks | — |
| Size | 63 MB | 38 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Attempt Technologies LLC](https://appshunter.io/developer/1890842272) | [AFTW LLC](https://appshunter.io/developer/1886356149) |

## What reviewers say

### Brainy Learning

[App page](https://appshunter.io/ios/app/brainy-learning/id6761680232)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Brainy Pro | $9.99 | per month |
| Brainy Pro+ | $14.99 | per month |
| Brainy Pro Yearly | $59.99 | per year |
| Brainy Pro+ Yearly | $89.99 | per year |


### Probability Theory Foundations

[App page](https://appshunter.io/ios/app/probability-theory-foundations/id6773734025)

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

**In-app purchases:** none


## Frequently asked questions

### Is Brainy Learning free?

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

### Is Probability Theory Foundations free?

Probability Theory Foundations is free to download, with no in-app purchases.

### Do Brainy Learning or Probability Theory Foundations have ads?

Neither Brainy Learning nor Probability Theory Foundations 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.*