# Project Mayhem vs Feynman rules

The clearest difference is in-app purchases: Feynman rules at none against Project Mayhem's 2. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Project Mayhem sells 2 one-off in-app purchases. Feynman rules asks for nothing beyond the download.

## The numbers

| Metric | Project Mayhem | Feynman rules |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (28 ratings)](https://appshunter.io/ios/app/project-mayhem/id1551711683/reviews)** | — |
| Number of ratings | **28** | — |
| Positive reviews | 87.5% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 days | — |
| Monetization | Free with in-app purchases | — |
| Size | 25 MB | 6 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 9+ | 4+ |
| Developer | [Yush Raj Kapoor](https://appshunter.io/developer/1730789147) | [Sungjun Kim](https://appshunter.io/developer/1602461985) |

## What reviewers say

### Project Mayhem

[App page](https://appshunter.io/ios/app/project-mayhem/id1551711683)

An alternate reality puzzle game where you uncover the secrets of a revolutionary brain-computer interface. Explore 15 chapters of creative puzzles, utilizing your device's full capabilities, including audio and augmented reality, to reveal the truth.

**Highlights:** Alternate Reality Puzzle Gameplay, Brain-Computer Interface Narrative, 15 Chapters of Story, Creative Puzzles, Audio Detection Integration, Augmented Reality Features

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock 5 Better Hints | $0.99 | one-time |
| All Bonus Hints | $1.99 | one-time |


### Feynman rules

[App page](https://appshunter.io/ios/app/feynman-rules/id6478752222)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Project Mayhem free?

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

### Is Feynman rules free?

Feynman rules is free to download, with no in-app purchases.

### Do Project Mayhem or Feynman rules have ads?

Neither Project Mayhem nor Feynman rules 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.*