# Pulsar Chess Engine vs ChezBot

The clearest difference is price: ChezBot at Free against Pulsar Chess Engine's $1.99. ChezBot also leads on rating (5.0 vs 4.3) and update cadence (every 2 days vs every 2 months). Pulsar Chess Engine's advantage is in-app purchases (none vs 2) and ads (none vs shown). On device support there is nothing between them.

ChezBot is free to download; Pulsar Chess Engine costs $1.99 up front. ChezBot sells 2 in-app purchases, starting at $5.00 per month. Pulsar Chess Engine asks for nothing beyond the download.

ChezBot holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: Pulsar Chess Engine has 12 ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 70% of Pulsar Chess Engine's written reviews are positive against 50% of ChezBot's, so the app with the better star average is not the one people write more warmly about.

Pulsar Chess Engine ships an update every 2 months, ChezBot every 2 days. The most recent releases landed on October 22, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Pulsar Chess Engine | ChezBot |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | [4.3 (12 ratings)](https://appshunter.io/ios/app/pulsar-chess-engine/id839640447/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/chezbot-chess-ai-coach/id6473223899/reviews)** |
| Number of ratings | **12** | 2 |
| Positive reviews | **70.0% of reviews** | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 2 days** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 11 MB | 90 MB |
| Requires iOS | 15.6 | **12.0** |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Michael Adams](https://appshunter.io/developer/743520896) | [GEKIGA GENIOUS KID GAME STUDIO COMPANY LIMITED](https://appshunter.io/developer/1679516032) |

## What reviewers say

### Pulsar Chess Engine

[App page](https://appshunter.io/ios/app/pulsar-chess-engine/id839640447)

Play chess and six popular variants with adjustable AI difficulty levels. Review logged games, access master game collections, and utilize Crafty engine analysis for standard chess and Chess960. Offers accessibility features for blind users.

**Highlights:** Plays 7 chess variants, Adjustable AI difficulty levels, Game logging and review, Master game collections, Crafty engine analysis, VoiceOver accessibility

**Features:** Vision Pro support

**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 Pulsar Chess Engine free?

Pulsar Chess Engine costs $1.99, with no in-app purchases.

### Is ChezBot free?

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

### Which has better reviews, Pulsar Chess Engine or ChezBot?

ChezBot is rated higher. Pulsar Chess Engine averages 4.3 out of 5 from 12 ratings, while ChezBot averages 5.0 from 2 ratings.

### Do Pulsar Chess Engine or ChezBot have ads?

ChezBot shows ads; Pulsar Chess Engine does not.

### Which is updated more often, Pulsar Chess Engine or ChezBot?

Pulsar Chess Engine ships an update every 2 months, and ChezBot every 2 days. Most recently, Pulsar Chess Engine was updated on October 22, 2026 and ChezBot on October 24, 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.*