# Interactive Chess Books vs Prokopton

The clearest difference is in-app purchases: Interactive Chess Books at none against Prokopton's 3. Interactive Chess Books also leads on iOS requirement (16.4 vs 18.0). Prokopton's advantage is update cadence (every 3 days vs every 4 months). On price, ads and device support there is nothing between them.

Both are free to download. Prokopton sells 3 one-off in-app purchases. Interactive Chess Books asks for nothing beyond the download.

Interactive Chess Books ships an update every 4 months, Prokopton every 3 days. The most recent releases landed on October 7, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Interactive Chess Books | Prokopton |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/interactive-chess-books/id1645731412/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 days** |
| Monetization | Free | — |
| Size | 34 MB | 23 MB |
| Requires iOS | **16.4** | 18.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [Eric Tangborn](https://appshunter.io/developer/1645731414) | [Marcel Timm](https://appshunter.io/developer/1846068948) |

## What reviewers say

### Interactive Chess Books

[App page](https://appshunter.io/ios/app/interactive-chess-books/id1645731412)

This app offers interactive lessons, tutorials, and practice exercises to help beginners and intermediate players improve their chess skills. It features a user-friendly interface with clear instructions, helpful tips, and engaging challenges to make learning fun and effective.

**Highlights:** Interactive lessons, Tutorials, Practice exercises, User-friendly interface, Helpful tips and tricks, Engaging challenges and quizzes

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

**In-app purchases:** none


### Prokopton

[App page](https://appshunter.io/ios/app/prokopton/id6754165468)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Desire | $0.99 | one-time |
| Action | $1.99 | one-time |
| Assent | $2.99 | one-time |


## Frequently asked questions

### Is Interactive Chess Books free?

Interactive Chess Books is free to download, with no in-app purchases.

### Is Prokopton free?

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

### Do Interactive Chess Books or Prokopton have ads?

Neither Interactive Chess Books nor Prokopton shows ads.

### Which is updated more often, Interactive Chess Books or Prokopton?

Interactive Chess Books ships an update every 4 months, and Prokopton every 3 days. Most recently, Interactive Chess Books was updated on October 7, 2026 and Prokopton on October 25, 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.*