# Flappy_Brain vs Poly Rules!

The clearest difference is rating: Poly Rules! at 4.8 against Flappy_Brain's 1.0. Poly Rules! also leads on ratings volume (13 vs 1). Flappy_Brain's advantage is iOS requirement (7.0 vs 12.0). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Poly Rules! holds the better App Store score, 4.8 against 1.0. That said, the two scores are not equally well evidenced: Poly Rules! has 13 ratings behind it against 1, so its average is the more settled of the two.

Flappy_Brain ships an update every 2 months, Poly Rules! monthly. Both last shipped on September 24, 2026.

## The numbers

| Metric | Flappy_Brain | Poly Rules! |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/flappy-brain/id890702695/reviews) | **[4.8 (13 ratings)](https://appshunter.io/ios/app/poly-rules/id1115877374/reviews)** |
| Number of ratings | 1 | **13** |
| Positive reviews | — | 80.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | Free | Free |
| Size | 85 MB | 111 MB |
| Requires iOS | **7.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Shenzhen Macrotellect Limited](https://appshunter.io/developer/593369519) | [Northeastern University Information Services](https://appshunter.io/developer/455790172) |

## What reviewers say

### Flappy_Brain

[App page](https://appshunter.io/ios/app/flappy-brain/id890702695)

Control a character's flight and jumps using brainwave technology with a compatible headset. Navigate through obstacles in two distinct game modes that test your concentration and reflexes.

**Highlights:** Brainwave headset compatibility, Focus & Tap game mode, Focus Only game mode, Obstacle avoidance gameplay, High score tracking

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Flappy_Brain free?

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

### Is Poly Rules! free?

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

### Which has better reviews, Flappy_Brain or Poly Rules!?

Poly Rules! is rated higher. Flappy_Brain averages 1.0 out of 5 from 1 ratings, while Poly Rules! averages 4.8 from 13 ratings.

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

Neither Flappy_Brain nor Poly Rules! shows ads.

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

Flappy_Brain ships an update every 2 months, and Poly Rules! monthly. Most recently, Flappy_Brain was updated on September 24, 2026 and Poly Rules! on September 24, 2026.

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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.*