# Openings Mastermind vs ChezBot

The clearest difference is rating: ChezBot at 5.0 against Openings Mastermind's 4.3. ChezBot also leads on update cadence (every 2 days vs fortnightly) and iOS requirement (12.0 vs 18.6). Openings Mastermind's advantage is in-app purchases (none vs 2) and ads (none vs shown). On price, review sentiment and device support there is nothing between them.

Both are free to download. ChezBot sells 2 in-app purchases, starting at $5.00 per month. Openings Mastermind asks for nothing beyond the download.

ChezBot holds the better App Store score, 5.0 against 4.3. Both are backed by a comparable volume of ratings — 6 and 2 respectively. Written reviews split almost evenly too, at 50% and 50% positive.

Openings Mastermind ships an update fortnightly, ChezBot every 2 days. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Openings Mastermind | ChezBot |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (6 ratings)](https://appshunter.io/ios/app/openings-mastermind/id6448386251/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/chezbot-chess-ai-coach/id6473223899/reviews)** |
| Number of ratings | **6** | 2 |
| Positive reviews | 50.0% of reviews | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Fortnightly | **Every 2 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 88 MB | 90 MB |
| Requires iOS | 18.6 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Christian Heise](https://appshunter.io/developer/1632898424) | [GEKIGA GENIOUS KID GAME STUDIO COMPANY LIMITED](https://appshunter.io/developer/1679516032) |

## What reviewers say

### Openings Mastermind

[App page](https://appshunter.io/ios/app/openings-mastermind/id6448386251)

Master chess openings with this app. Import studies, explore with advanced engines, and practice specific lines through repetition. Track your progress and improve your game.

**Highlights:** Import Lichess Studies or PGNs, Explore openings with Stockfish 15, Practice openings by repetition, Smart practice queue, Track learning progress

**Features:** macOS Compatibility

**In-app purchases:** none


### ChezBot

[App page](https://appshunter.io/ios/app/chezbot-chess-ai-coach/id6473223899)

Master chess with an AI tutor offering step-by-step lessons, challenging puzzles, and in-depth game analysis. Practice against an adaptive AI and track your progress to improve your skills from beginner to grandmaster levels.

**Highlights:** Step-by-step chess lessons, Hand-picked puzzles, AI game analysis, Import games from PGN/Lichess/Chess.com, Adaptive AI opponent, Progress tracking

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $5.00 | per month |
| One Year | $30.00 | per year |


## Frequently asked questions

### Is Openings Mastermind free?

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

### Is ChezBot free?

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

### Which has better reviews, Openings Mastermind or ChezBot?

ChezBot is rated higher. Openings Mastermind averages 4.3 out of 5 from 6 ratings, while ChezBot averages 5.0 from 2 ratings.

### Do Openings Mastermind or ChezBot have ads?

ChezBot shows ads; Openings Mastermind does not.

### Which is updated more often, Openings Mastermind or ChezBot?

Openings Mastermind ships an update fortnightly, and ChezBot every 2 days. Most recently, Openings Mastermind was updated on November 3, 2026 and ChezBot on November 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.*