# Feynman WTF vs Set Theory for Computing

The clearest difference is in-app purchases: Set Theory for Computing at none against Feynman WTF's 2. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Feynman WTF sells 2 in-app purchases, starting at $10.00 per month. Set Theory for Computing asks for nothing beyond the download.

## The numbers

| Metric | Feynman WTF | Set Theory for Computing |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Weekly | — |
| Size | 37 MB | 38 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Vrushal Kapadnis](https://appshunter.io/developer/1830846117) | [AFTW LLC](https://appshunter.io/developer/1886356149) |

## What reviewers say

### Feynman WTF

[App page](https://appshunter.io/ios/app/feynman-wtf/id6749510148)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $10.00 | per month |
| Pro Yearly | $99.99 | per year |


### Set Theory for Computing

[App page](https://appshunter.io/ios/app/set-theory-for-computing/id6773874925)

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

**In-app purchases:** none


## Frequently asked questions

### Is Feynman WTF free?

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

### Is Set Theory for Computing free?

Set Theory for Computing is free to download, with no in-app purchases.

### Do Feynman WTF or Set Theory for Computing have ads?

Neither Feynman WTF nor Set Theory for Computing 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.*