# Poly Rules! vs Brainrot

The clearest difference is in-app purchases: Poly Rules! at none against Brainrot's 3. Poly Rules! also leads on iOS requirement (12.0 vs 15.1). Brainrot's advantage is update cadence (every 2 weeks vs monthly). On price, ads and device support there is nothing between them.

Both are free to download. Brainrot sells 3 in-app purchases, starting at $3.99 per month. Poly Rules! asks for nothing beyond the download.

Poly Rules! ships an update monthly, Brainrot every 2 weeks. The most recent releases landed on September 8, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | Poly Rules! | Brainrot |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (13 ratings)](https://appshunter.io/ios/app/poly-rules/id1115877374/reviews)** | — |
| Number of ratings | **13** | — |
| Positive reviews | 80.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 2 weeks** |
| Monetization | Free | — |
| Size | 111 MB | 49 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Northeastern University Information Services](https://appshunter.io/developer/455790172) | [BOGDAN-GEORGIAN ALEXA](https://appshunter.io/developer/1777251935) |

## What reviewers say

### Poly Rules!

[App page](https://appshunter.io/ios/app/poly-rules/id1115877374)

A challenging sorting game where the rules dynamically change as you progress. It offers increasingly complex scenarios to test your cognitive abilities. Researchers can inquire about using the game for studies.

**Highlights:** Dynamic rule changes, Increasingly complex scenarios, Cognitive benefit focus, Research support available, Log storage and analytics (coming soon)

**Features:** macOS Compatibility

**In-app purchases:** none


### Brainrot

[App page](https://appshunter.io/ios/app/brainrot-n-back-memory-fix/id6745025093)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Mindback Premium | $3.99 | per month |
| 1 Year Premium Plan | $19.99 | per year |
| One Time Payment - Lifetime Premium | $19.99 | one-time |


## Frequently asked questions

### Is Poly Rules! free?

Poly Rules! is free to download, with no in-app purchases.

### Is Brainrot free?

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

### Do Poly Rules! or Brainrot have ads?

Neither Poly Rules! nor Brainrot shows ads.

### Which is updated more often, Poly Rules! or Brainrot?

Poly Rules! ships an update monthly, and Brainrot every 2 weeks. Most recently, Poly Rules! was updated on September 8, 2026 and Brainrot on September 18, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*