# Kartoffel vs Chess Notation Fluency

The clearest difference is rating: Chess Notation Fluency at 5.0 against Kartoffel's 3.0. Chess Notation Fluency also leads on device support (3 vs 1). Kartoffel's advantage is in-app purchases (none vs 1) and iOS requirement (16.4 vs 26.0). On price, ratings volume, update cadence and ads there is nothing between them.

Both are free to download. Chess Notation Fluency sells 1 one-off in-app purchase. Kartoffel asks for nothing beyond the download.

Chess Notation Fluency holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 3 and 2 respectively.

Kartoffel ships an update every 2 days, Chess Notation Fluency every 3 days. The most recent releases landed on October 6, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Kartoffel | Chess Notation Fluency |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (3 ratings)](https://appshunter.io/ios/app/kartoffel-voice-echo/id6468971553/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/chess-notation-fluency/id6809233054/reviews)** |
| Number of ratings | **3** | 2 |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 3 days |
| Monetization | **Free** | Free with in-app purchases |
| Size | 3 MB | 42 MB |
| Requires iOS | **16.4** | 26.0 |
| Devices | iPhone | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Kyung Jun Lee](https://appshunter.io/developer/1694956002) | [Mark Harris](https://appshunter.io/developer/6799526558) |

## What reviewers say

### Kartoffel

[App page](https://appshunter.io/ios/app/kartoffel-voice-echo/id6468971553)

This app helps you refine your accent and speaking skills by echoing your voice. It provides immediate auditory feedback to guide you in shaping your pronunciation closer to native speakers.

**Highlights:** Voice echo for pronunciation practice, Accent refinement, Native speaker comparison, Language speaking skill improvement

**Features:** macOS Compatibility

**In-app purchases:** none


### Chess Notation Fluency

[App page](https://appshunter.io/ios/app/chess-notation-fluency/id6809233054)

Master chess notation with interactive exercises. Practice reading and writing Standard Algebraic Notation (SAN) using real game sequences. Track your progress and learn from detailed results.

**Highlights:** Read and write Standard Algebraic Notation (SAN), Practice with real game sequences, Train notation in both directions, Customizable practice modes, Detailed performance tracking, Offline practice available, No personal data collection

**Features:** Family Sharing, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Game Library | $4.99 | one-time |


## Frequently asked questions

### Is Kartoffel free?

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

### Is Chess Notation Fluency free?

Chess Notation Fluency is free to download, with in-app purchases available.

### Which has better reviews, Kartoffel or Chess Notation Fluency?

Chess Notation Fluency is rated higher. Kartoffel averages 3.0 out of 5 from 3 ratings, while Chess Notation Fluency averages 5.0 from 2 ratings.

### Do Kartoffel or Chess Notation Fluency have ads?

Neither Kartoffel nor Chess Notation Fluency shows ads.

### Which is updated more often, Kartoffel or Chess Notation Fluency?

Kartoffel ships an update every 2 days, and Chess Notation Fluency every 3 days. Most recently, Kartoffel was updated on October 6, 2026 and Chess Notation Fluency on October 13, 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.*