# The Block Unlock vs Fast Chess!

The clearest difference is in-app purchases: The Block Unlock at none against Fast Chess!'s 5. Fast Chess!'s advantage is iOS requirement (12.0 vs 15.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Fast Chess! sells 5 one-off in-app purchases. The Block Unlock asks for nothing beyond the download.

The Block Unlock ships an update every 2 weeks, Fast Chess! fortnightly. The most recent releases landed on October 30, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | The Block Unlock | Fast Chess! |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.5 (2 ratings)](https://appshunter.io/ios/app/fast-chess/id6757382636/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 2 weeks | **Fortnightly** |
| Monetization | — | Free with in-app purchases |
| Size | 257 MB | 129 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Fat Cat With a Hat](https://appshunter.io/developer/1847966967) | [Oksana Voloshyna](https://appshunter.io/developer/1488883465) |

## What reviewers say

### The Block Unlock

[App page](https://appshunter.io/ios/app/the-block-unlock/id6755229365)

**Features:** macOS Compatibility

**In-app purchases:** none


### Fast Chess!

[App page](https://appshunter.io/ios/app/fast-chess/id6757382636)

Experience a faster, more dynamic chess game on a compact 6x6 board. Perfect for quick thinking and sharp strategy, this app offers balanced matches against opponents suited to your skill level. Ideal for both enthusiasts and casual players seeking a fresh twist on the classic game.

**Highlights:** Unique 6x6 chess board, Short, intense matches, Balanced opponent matching, Clean, minimalist design, Ideal for quick breaks, Daily practice

**Features:** macOS Compatibility

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Hints package | $1.99 | one-time |
| Hints package (5) | $2.99 | one-time |
| Hints package (10) | $3.99 | one-time |
| Hints package (20) | $4.99 | one-time |
| Hints package (30) | $5.99 | one-time |


## Frequently asked questions

### Is The Block Unlock free?

The Block Unlock is free to download, with no in-app purchases.

### Is Fast Chess! free?

Fast Chess! is free to download, with in-app purchases available.

### Do The Block Unlock or Fast Chess! have ads?

Both The Block Unlock and Fast Chess! show ads.

### Which is updated more often, The Block Unlock or Fast Chess!?

The Block Unlock ships an update every 2 weeks, and Fast Chess! fortnightly. Most recently, The Block Unlock was updated on October 30, 2026 and Fast Chess! on November 5, 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.*