# Poly Rules! vs Countless

The clearest difference is update cadence: Poly Rules! at monthly against Countless's every 5 months. Poly Rules! also leads on iOS requirement (12.0 vs 15.0). On price, ads, in-app purchases and device support 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! ships an update monthly, Countless every 5 months. The most recent releases landed on September 8, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | Poly Rules! | Countless |
| --- | --- | --- |
| 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 | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 5 months |
| Monetization | Free | — |
| Size | 111 MB | 77 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Northeastern University Information Services](https://appshunter.io/developer/455790172) | [Valerio Manuel Sevilla Gutierrez](https://appshunter.io/developer/542915246) |

## 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


### Countless

[App page](https://appshunter.io/ios/app/countless-ability-game/id1148376498)

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

**In-app purchases:** none


## Frequently asked questions

### Is Poly Rules! free?

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

### Is Countless free?

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

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

Neither Poly Rules! nor Countless shows ads.

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

Poly Rules! ships an update monthly, and Countless every 5 months. Most recently, Poly Rules! was updated on September 8, 2026 and Countless on September 16, 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.*