# Math Chicken vs PSM Circle

Math Chicken and PSM Circle are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Math Chicken ships an update every 6 weeks, PSM Circle every 3 weeks. The most recent releases landed on September 20, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | Math Chicken | PSM Circle |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 3 weeks** |
| Size | 8 MB | 59 MB |
| Requires iOS | 16 | **15.1** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Bui Dinh Nguyen](https://appshunter.io/developer/1159334014) | [Hung Hoang Le](https://appshunter.io/developer/1388196112) |

## What reviewers say

### Math Chicken

[App page](https://appshunter.io/ios/app/math-chicken-genius/id6723887099)

**Features:** macOS Compatibility

**In-app purchases:** none


### PSM Circle

[App page](https://appshunter.io/ios/app/psm-circle/id6754418838)

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

**In-app purchases:** none


## Frequently asked questions

### Is Math Chicken free?

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

### Is PSM Circle free?

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

### Do Math Chicken or PSM Circle have ads?

Neither Math Chicken nor PSM Circle shows ads.

### Which is updated more often, Math Chicken or PSM Circle?

Math Chicken ships an update every 6 weeks, and PSM Circle every 3 weeks. Most recently, Math Chicken was updated on September 20, 2026 and PSM Circle on September 11, 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.*