# Block Knockout Puzzle vs Boom Stack Smash

The clearest difference is in-app purchases: Block Knockout Puzzle at none against Boom Stack Smash's 5. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Boom Stack Smash sells 5 one-off in-app purchases. Block Knockout Puzzle asks for nothing beyond the download.

## The numbers

| Metric | Block Knockout Puzzle | Boom Stack Smash |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | — | Weekly |
| Size | 208 MB | 172 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Abderrahmane Batlamouss](https://appshunter.io/developer/1865309724) | [Nestengineering](https://appshunter.io/developer/1826499232) |

## What reviewers say

### Block Knockout Puzzle

[App page](https://appshunter.io/ios/app/block-knockout-puzzle/id6798478753)

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

**In-app purchases:** none


### Boom Stack Smash

[App page](https://appshunter.io/ios/app/boom-stack-smash/id6802006926)

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Handful of Coins | $1.99 | one-time |
| Ad-Free Pass | $3.99 | one-time |
| Bag of Coins | $4.99 | one-time |
| Chest of Coins | $6.99 | one-time |
| Remove Ads | $12.99 | one-time |


## Frequently asked questions

### Is Block Knockout Puzzle free?

Block Knockout Puzzle is free to download, with no in-app purchases.

### Is Boom Stack Smash free?

Boom Stack Smash is free to download, with in-app purchases available.

### Do Block Knockout Puzzle or Boom Stack Smash have ads?

Both Block Knockout Puzzle and Boom Stack Smash show 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.*