# Poly Rules! vs Gblocks

The clearest difference is in-app purchases: Poly Rules! at none against Gblocks's 5. Poly Rules! also leads on ads (none vs shown) and ratings volume (13 vs 3). Gblocks's advantage is update cadence (every 3 days vs monthly) and review sentiment (100% vs 80%). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Gblocks sells 5 one-off in-app purchases. Poly Rules! asks for nothing beyond the download.

Gblocks holds the better App Store score, 5.0 against 4.8. Both are backed by a comparable volume of ratings — 13 and 3 respectively. Written reviews point the same way: 80% of Poly Rules!'s written reviews are positive against 100% of Gblocks's.

Poly Rules! ships an update monthly, Gblocks every 3 days. The most recent releases landed on September 24, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | Poly Rules! | Gblocks |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (13 ratings)](https://appshunter.io/ios/app/poly-rules/id1115877374/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/gblocks/id6474200552/reviews)** |
| Number of ratings | **13** | 3 |
| Positive reviews | 80.0% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Monthly | **Every 3 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 111 MB | 91 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Northeastern University Information Services](https://appshunter.io/developer/455790172) | [GGyess](https://appshunter.io/developer/1598993749) |

## 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


### Gblocks

[App page](https://appshunter.io/ios/app/gblocks/id6474200552)

This app merges play and learning, offering a unique experience to stimulate your brain and improve cognitive skills. It features challenges for all levels and a community for friendly competition and sharing.

**Highlights:** Cognitive enhancement, Problem-solving skills, Levels for all skill levels, Smart play community, Fun with purpose

**Features:** macOS Compatibility

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 240 Gems | $2.99 | one-time |
| Remove Ads | $3.99 | one-time |
| 800 Gems | $3.99 | one-time |
| 1,500 Gems | $4.99 | one-time |
| 3500 Gems | $9.99 | one-time |


## Frequently asked questions

### Is Poly Rules! free?

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

### Is Gblocks free?

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

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

Gblocks is rated higher. Poly Rules! averages 4.8 out of 5 from 13 ratings, while Gblocks averages 5.0 from 3 ratings.

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

Gblocks shows ads; Poly Rules! does not.

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

Poly Rules! ships an update monthly, and Gblocks every 3 days. Most recently, Poly Rules! was updated on September 24, 2026 and Gblocks on September 30, 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.*