# Deep Green vs Chess Mastery Analysis & Train

The clearest difference is monetization model: Chess Mastery Analysis & Train at free against Deep Green's paid. Chess Mastery Analysis & Train also leads on review sentiment (100% vs 66%). On price, update cadence, ads and in-app purchases there is nothing between them.

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

Deep Green ships an update every 4 months, Chess Mastery Analysis & Train every 5 months. The most recent releases landed on October 18, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Deep Green | Chess Mastery Analysis & Train |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.9 (76 ratings)](https://appshunter.io/ios/app/deep-green/id299471086/reviews)** | — |
| Number of ratings | **76** | — |
| Positive reviews | 66.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 5 months |
| Monetization | Paid | **Free** |
| Size | 24 MB | 4 MB |
| Requires iOS | **16.4** | 17.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Cocoa Stuff](https://appshunter.io/developer/299471089) | [Ozan Ozcelik](https://appshunter.io/developer/1732862940) |

## What reviewers say

### Deep Green

[App page](https://appshunter.io/ios/app/deep-green/id299471086)

This app provides a classical chess experience with a clean, native interface and customizable piece designs. It supports open game formats, offers a unique chess engine with adjustable strength, and features a private, ad-free environment.

**Highlights:** Clean, native user interface, Customizable chess piece designs, Open game format (PGN/FEN), Adjustable strength chess engine, Private and ad-free experience, System-level integration

**In-app purchases:** none

**What reviewers like**

- 🌟 Elegant and polished design
- 🤖 Strong chess engine
- 👍 Intuitive and easy to use
- 🎨 Beautiful graphics and animations
- 🕹️ Smooth gameplay and controls

**What reviewers complain about**

- 🐛 Crashes and stability issues
- ⚠️ Lack of features (e.g. game saving, online play)
- 🔍 Difficulty settings too challenging for some users
- 🔕 Missing audio/sound effects
- 📏 Board/pieces not optimized for larger screens

**Reported bugs**

- App crashes when promoting pawns
- Board orientation issues when rotating device
- Unresponsive UI elements
- Compatibility problems with newer iOS versions

**Requested features**

- Game saving and loading functionality
- Online/multiplayer mode
- Customizable board/piece themes
- Difficulty settings for beginners
- Indicators for check, checkmate, and draw


### Chess Mastery Analysis & Train

[App page](https://appshunter.io/ios/app/chess-mastery-analysis-and-train/id6478446286)

This app helps you improve your chess strategy by predicting advantage in positions and comparing your guesses with machine analysis. It offers an educational and entertaining way to learn new tactics and master challenging games.

**Highlights:** Predict chess position advantage, Compare guesses with machine analysis, Learn new chess strategies, Test skills with hard mode, User-friendly interface

**In-app purchases:** none


## Frequently asked questions

### Is Deep Green free?

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

### Is Chess Mastery Analysis & Train free?

Chess Mastery Analysis & Train is free to download, with no in-app purchases.

### Do Deep Green or Chess Mastery Analysis & Train have ads?

Neither Deep Green nor Chess Mastery Analysis & Train shows ads.

### Which is updated more often, Deep Green or Chess Mastery Analysis & Train?

Deep Green ships an update every 4 months, and Chess Mastery Analysis & Train every 5 months. Most recently, Deep Green was updated on October 18, 2026 and Chess Mastery Analysis & Train on October 4, 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.*