# Plack vs CM3 by GP

The clearest difference is in-app purchases: CM3 by GP at none against Plack's 2. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Plack sells 2 in-app purchases, starting at $3.99 per month. CM3 by GP asks for nothing beyond the download.

Plack ships an update every 4 days, CM3 by GP every 5 days. The most recent releases landed on November 3, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Plack | CM3 by GP |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (6 ratings)](https://appshunter.io/ios/app/plack/id1483548106/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 5 days |
| Monetization | Subscription | — |
| Size | 173 MB | 64 MB |
| Requires iOS | 17.6 | **16.1** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Cuarto 101, S.A. de C.V.](https://appshunter.io/developer/1186090016) | [Nervat, S.A. de C.V.](https://appshunter.io/developer/1524514604) |

## What reviewers say

### Plack

[App page](https://appshunter.io/ios/app/plack/id1483548106)

Track golf bets, wins, losses, and profits digitally. This modern solution replaces old notebooks, simplifying scorekeeping on any course in Mexico without needing a caddy or paper.

**Highlights:** Track bets, wins, and losses, Calculate profits, Digital scorekeeping, Modern alternative to notebooks, Use on any golf course

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Plack monthly subscription. | $3.99 | per month |
| Subscription Plack | $39.99 | per year |


### CM3 by GP

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

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Plack free?

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

### Is CM3 by GP free?

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

### Do Plack or CM3 by GP have ads?

Neither Plack nor CM3 by GP shows ads.

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

Plack ships an update every 4 days, and CM3 by GP every 5 days. Most recently, Plack was updated on November 3, 2026 and CM3 by GP on October 25, 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.*