# BlastKnock vs Boom Stack Smash

The clearest difference is in-app purchases: BlastKnock at none against Boom Stack Smash's 5. BlastKnock also leads on ads (none vs shown). On price, 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. BlastKnock asks for nothing beyond the download.

## The numbers

| Metric | BlastKnock | Boom Stack Smash |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | — | Weekly |
| Size | 88 MB | 172 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [cignal.io](https://appshunter.io/developer/1896585435) | [Nestengineering](https://appshunter.io/developer/1826499232) |

## What reviewers say

### BlastKnock

[App page](https://appshunter.io/ios/app/blastknock/id6768558959)

**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 BlastKnock free?

BlastKnock 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 BlastKnock or Boom Stack Smash have ads?

Boom Stack Smash shows ads; BlastKnock does not.

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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.*