# chess.ceo vs Notation

The clearest difference is review sentiment: chess.ceo at 100% against Notation's 0%. chess.ceo also leads on price (Free vs $2.99) and rating (5.0 vs 4.5). Notation's advantage is update cadence (every 4 days vs every 4 weeks) and ratings volume (4 vs 1). On ads, in-app purchases and device support there is nothing between them.

chess.ceo is free to download; Notation costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

chess.ceo holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 1 and 4 respectively. Written reviews point the same way: 100% of chess.ceo's written reviews are positive against 0% of Notation's.

chess.ceo ships an update every 4 weeks, Notation every 4 days. The most recent releases landed on September 25, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | chess.ceo | Notation |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/chessceo/id6759229388/reviews)** | [4.5 (4 ratings)](https://appshunter.io/ios/app/notation-chess-coach/id6759826744/reviews) |
| Number of ratings | 1 | **4** |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 weeks | **Every 4 days** |
| Monetization | **Freemium** | Paid |
| Size | 141 MB | 427 MB |
| Requires iOS | **15.0** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [CHESSGM OU](https://appshunter.io/developer/1877558592) | [Darren Cox](https://appshunter.io/developer/1874926497) |

## What reviewers say

### chess.ceo

[App page](https://appshunter.io/ios/app/chessceo/id6759229388)

This app provides professional chess analysis tools, including engine analysis, a vast game database, and opponent preparation features. It allows users to analyze games, study master-level games, and follow live tournaments. An optional subscription unlocks advanced features like offline database access and a distraction-free analysis board.

**Highlights:** Engine analysis with Stockfish, 14 million master-level game database, Opponent search and repertoire study, Live tournament broadcasts, Full game analysis with PGN import, Organize and sync PGN files, Chess960 and chess clock

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Notation

[App page](https://appshunter.io/ios/app/notation-chess-coach/id6759826744)

This app provides in-depth chess coaching by explaining moves and patterns using advanced AI and established coaching theories. It offers detailed game reviews, player profiling, and opponent scouting, all processed on your device for privacy.

**Highlights:** On-device AI analysis, Multiple coaching frameworks, Detailed game reviews, Player style profiling, Opponent scouting, Physical board integration, Privacy-focused design

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is chess.ceo free?

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

### Is Notation free?

Notation costs $2.99, with no in-app purchases.

### Which has better reviews, chess.ceo or Notation?

chess.ceo is rated higher. chess.ceo averages 5.0 out of 5 from 1 ratings, while Notation averages 4.5 from 4 ratings.

### Do chess.ceo or Notation have ads?

Neither chess.ceo nor Notation shows ads.

### Which is updated more often, chess.ceo or Notation?

chess.ceo ships an update every 4 weeks, and Notation every 4 days. Most recently, chess.ceo was updated on September 25, 2026 and Notation on September 12, 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.*