# Poly Rules! vs Stroopid

The clearest difference is rating: Poly Rules! at 4.8 against Stroopid's 4.0. Poly Rules! also leads on in-app purchases (none vs 1) and review sentiment (80% vs 50%). Stroopid's advantage is iOS requirement (9.0 vs 12.0). On price, ratings volume, ads and device support there is nothing between them.

Both are free to download. Stroopid sells 1 one-off in-app purchase. Poly Rules! asks for nothing beyond the download.

Poly Rules! holds the better App Store score, 4.8 against 4.0. Both are backed by a comparable volume of ratings — 13 and 5 respectively. Written reviews point the same way: 80% of Poly Rules!'s written reviews are positive against 50% of Stroopid's.

## The numbers

| Metric | Poly Rules! | Stroopid |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (13 ratings)](https://appshunter.io/ios/app/poly-rules/id1115877374/reviews)** | [4.0 (5 ratings)](https://appshunter.io/ios/app/stroopid/id1254974957/reviews) |
| Number of ratings | **13** | 5 |
| Positive reviews | **80.0% of reviews** | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | — |
| Monetization | **Free** | Free with in-app purchases |
| Size | 111 MB | 18 MB |
| Requires iOS | 12.0 | **9.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Northeastern University Information Services](https://appshunter.io/developer/455790172) | [Override](https://appshunter.io/developer/560756483) |

## 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


### Stroopid

[App page](https://appshunter.io/ios/app/stroopid/id1254974957)

Test your cognitive skills by tapping the ink color of words, not the words themselves. This game challenges your focus and speed with a limited time to make decisions. Compete for high scores, unlock achievements, and master the Stroop effect.

**Highlights:** Tap ink color, not written word, Limited time decisions, High score competition, Unlock achievements, Sharpen cognitive skills

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Version | $0.99 | one-time |


## Frequently asked questions

### Is Poly Rules! free?

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

### Is Stroopid free?

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

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

Poly Rules! is rated higher. Poly Rules! averages 4.8 out of 5 from 13 ratings, while Stroopid averages 4.0 from 5 ratings.

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

Neither Poly Rules! nor Stroopid 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.*