# Unblock The Blocks vs ChessPrep

The clearest difference is rating: ChessPrep at 3.0 against Unblock The Blocks's 1.0. ChessPrep also leads on review sentiment (33% vs 17%). Unblock The Blocks's advantage is monetization model (free vs free with in-app purchases) and iOS requirement (8.0 vs 12.0). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Unblock The Blocks sells 2 one-off in-app purchases and ChessPrep sells 3 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

ChessPrep holds the better App Store score, 3.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 2 respectively. Written reviews point the same way: 17% of Unblock The Blocks's written reviews are positive against 33% of ChessPrep's.

## The numbers

| Metric | Unblock The Blocks | ChessPrep |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/unblock-the-blocks/id1135168719/reviews) | **[3.0 (2 ratings)](https://appshunter.io/ios/app/chessprep/id6469808213/reviews)** |
| Number of ratings | 1 | **2** |
| Positive reviews | 16.7% of reviews | **33.3% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | — | Every 3 days |
| Monetization | **Free** | Free with in-app purchases |
| Size | 39 MB | 109 MB |
| Requires iOS | **8.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Sandeep Bhandari](https://appshunter.io/developer/794284640) | [Stephen Papadatos](https://appshunter.io/developer/1712680449) |

## What reviewers say

### Unblock The Blocks

[App page](https://appshunter.io/ios/app/unblock-the-blocks/id1135168719)

Slide blocks to free the red block and solve challenging logic puzzles. Enjoy offline play with no time limits and multiple difficulty levels. Improve memory, concentration, and reasoning skills with this addictive brain teaser.

**Highlights:** Sliding block puzzle gameplay, Unblock the red block, Offline play supported, No time limits, Multiple difficulty levels, Improves memory and reasoning

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | Free | one-time |
| Unlock Levels | Free | one-time |


### ChessPrep

[App page](https://appshunter.io/ios/app/chessprep/id6469808213)

Enhance your chess strategy with a powerful companion app. Build your repertoire from grandmaster moves, analyze opponent responses, and master tactics using a strong chess engine and spaced repetition.

**Highlights:** Build repertoire from grandmaster moves, Analyze opponent responses by elo, Stockfish 16 chess engine, Spaced repetition system, Position analysis and variation calculation

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ChessButler Monthly Sub | $0.99 | per month |
| ChessButler Yearly Sub | $9.99 | per year |
| ChessButler Lifetime Premium | $19.99 | one-time |


## Frequently asked questions

### Is Unblock The Blocks free?

Unblock The Blocks is free to download, with in-app purchases available.

### Is ChessPrep free?

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

### Which has better reviews, Unblock The Blocks or ChessPrep?

ChessPrep is rated higher. Unblock The Blocks averages 1.0 out of 5 from 1 ratings, while ChessPrep averages 3.0 from 2 ratings.

### Do Unblock The Blocks or ChessPrep have ads?

Neither Unblock The Blocks nor ChessPrep shows ads.

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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.*