# Notation vs My Blunders

The clearest difference is price: My Blunders at Free against Notation's $2.99. My Blunders also leads on iOS requirement (15.0 vs 18.6). On update cadence, ads, in-app purchases and device support there is nothing between them.

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

Notation ships an update every 4 days, My Blunders every 2 days. The most recent releases landed on September 12, 2026 and August 9, 2026 respectively.

## The numbers

| Metric | Notation | My Blunders |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[4.5 (4 ratings)](https://appshunter.io/ios/app/notation-chess-coach/id6759826744/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 days | **Every 2 days** |
| Monetization | Paid | — |
| Size | 427 MB | 11 MB |
| Requires iOS | 18.6 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Darren Cox](https://appshunter.io/developer/1874926497) | [SAMI ABDULNOUR](https://appshunter.io/developer/6777989744) |

## What reviewers say

### 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


### My Blunders

[App page](https://appshunter.io/ios/app/my-blunders/id6795417088)

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

**In-app purchases:** none


## Frequently asked questions

### Is Notation free?

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

### Is My Blunders free?

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

### Do Notation or My Blunders have ads?

Neither Notation nor My Blunders shows ads.

### Which is updated more often, Notation or My Blunders?

Notation ships an update every 4 days, and My Blunders every 2 days. Most recently, Notation was updated on September 12, 2026 and My Blunders on August 9, 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.*