# Dozen vs Chess Heat Map Analysis

The clearest difference is in-app purchases: Dozen at none against Chess Heat Map Analysis's 1. Dozen also leads on ratings volume (21 vs 2). Chess Heat Map Analysis's advantage is update cadence (every 4 days vs every 5 months) and iOS requirement (12.0 vs 15.0). On price, rating, ads and device support there is nothing between them.

Both are free to download. Chess Heat Map Analysis sells 1 one-off in-app purchase. Dozen asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.9 for Dozen against 5.0 for Chess Heat Map Analysis. That said, the two scores are not equally well evidenced: Dozen has 21 ratings behind it against 2, so its average is the more settled of the two.

Dozen ships an update every 5 months, Chess Heat Map Analysis every 4 days. The most recent releases landed on June 10, 2026 and July 6, 2026 respectively.

## The numbers

| Metric | Dozen | Chess Heat Map Analysis |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.9 (21 ratings)](https://appshunter.io/ios/app/dozen-memory-game/id1520158240/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/chess-heat-map-analysis/id6499176613/reviews)** |
| Number of ratings | **21** | 2 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 4 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 29 MB | 120 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Igor Fedorov](https://appshunter.io/developer/1520158242) | [TOLOTRA SAMUEL RANDRIAKOTONJANAHARY](https://appshunter.io/developer/1737728213) |

## What reviewers say

### Dozen

[App page](https://appshunter.io/ios/app/dozen-memory-game/id1520158240)

A challenging memory card game where you compete against your iPhone to test and improve your memorization skills. Flip cards, match pairs, and score points before the device outmaneuvers you. Engage in fast-paced, addictive gameplay anytime, anywhere.

**Highlights:** Memory card game, Compete against iPhone, Memorize card locations, Score pairing points, Fast-paced gameplay, Sharpen memory

**Features:** macOS Compatibility

**In-app purchases:** none


### Chess Heat Map Analysis

[App page](https://appshunter.io/ios/app/chess-heat-map-analysis/id6499176613)

Visualize chess games with dynamic heat maps showing control and threat. Analyze moves, identify weaknesses, and improve your strategy with customizable settings. Study past games and opponent tactics to elevate your gameplay.

**Highlights:** Heat map visualization, Threat and defense analysis, Customizable settings, Game learning and improvement, Multiplatform support, Offline play

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Access | $12.99 | one-time |


## Frequently asked questions

### Is Dozen free?

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

### Is Chess Heat Map Analysis free?

Chess Heat Map Analysis is free to download, with in-app purchases available.

### Which has better reviews, Dozen or Chess Heat Map Analysis?

Chess Heat Map Analysis is rated higher. Dozen averages 4.9 out of 5 from 21 ratings, while Chess Heat Map Analysis averages 5.0 from 2 ratings.

### Do Dozen or Chess Heat Map Analysis have ads?

Neither Dozen nor Chess Heat Map Analysis shows ads.

### Which is updated more often, Dozen or Chess Heat Map Analysis?

Dozen ships an update every 5 months, and Chess Heat Map Analysis every 4 days. Most recently, Dozen was updated on June 10, 2026 and Chess Heat Map Analysis on July 6, 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.*