# CM3 by GP vs Racket PlayGrid

CM3 by GP and Racket PlayGrid 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.

CM3 by GP ships an update every 5 days, Racket PlayGrid every 6 days. The most recent releases landed on September 16, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | CM3 by GP | Racket PlayGrid |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 6 days |
| Size | 64 MB | 30 MB |
| Requires iOS | 16.1 | **15.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Nervat, S.A. de C.V.](https://appshunter.io/developer/1524514604) | [Automotive Online Publishing Solutions, S.A. de C.V.](https://appshunter.io/developer/1086873561) |

## What reviewers say

### CM3 by GP

[App page](https://appshunter.io/ios/app/cm3-by-gp/id6477046209)

**Features:** macOS Compatibility

**In-app purchases:** none


### Racket PlayGrid

[App page](https://appshunter.io/ios/app/racket-playgrid/id6759293249)

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

**In-app purchases:** none


## Frequently asked questions

### Is CM3 by GP free?

CM3 by GP is free to download, with no in-app purchases.

### Is Racket PlayGrid free?

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

### Do CM3 by GP or Racket PlayGrid have ads?

Neither CM3 by GP nor Racket PlayGrid shows ads.

### Which is updated more often, CM3 by GP or Racket PlayGrid?

CM3 by GP ships an update every 5 days, and Racket PlayGrid every 6 days. Most recently, CM3 by GP was updated on September 16, 2026 and Racket PlayGrid on September 13, 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.*