# Block Stack vs Carnival Knockdown

The clearest difference is ratings volume: Carnival Knockdown at 7.1K against Block Stack's 9. Carnival Knockdown also leads on rating (4.9 vs 4.6). Block Stack's advantage is iOS requirement (11.0 vs 15.0). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Block Stack sells 1 one-off in-app purchase and Carnival Knockdown sells 13 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Carnival Knockdown holds the better App Store score, 4.9 against 4.6. That said, the two scores are not equally well evidenced: Carnival Knockdown has 7.1K ratings behind it against 9, so its average is the more settled of the two.

Block Stack ships an update every 4 days, Carnival Knockdown every 3 days. The most recent releases landed on October 1, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | Block Stack | Carnival Knockdown |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (9 ratings)](https://appshunter.io/ios/app/block-stack-smash-box-balls/id1526851829/reviews) | **[4.9 (7.1K ratings)](https://appshunter.io/ios/app/carnival-knockdown/id6780989548/reviews)** |
| Number of ratings | 9 | **7.1K** |
| Positive reviews | — | 92.3% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 4 days | **Every 3 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 77 MB | 308 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Oleksandr Lushpihan](https://appshunter.io/developer/1406512880) | [Fortune Mine Games](https://appshunter.io/developer/1565949596) |

## What reviewers say

### Block Stack

[App page](https://appshunter.io/ios/app/block-stack-smash-box-balls/id1526851829)

Tap to launch balls and smash voxel towers in this addictive 3D physics arcade game. Collect gems to unlock new items and progress through fun, competitive levels with stunning visual effects.

**Highlights:** One-hand tap controls, Addictive 3D physics, Voxel tower smashing, Gem collection for unlocks, Relaxing and easy levels, Stunning visual effects

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| No Ads | $1.99 | one-time |


### Carnival Knockdown

[App page](https://appshunter.io/ios/app/carnival-knockdown/id6780989548)

Engage in a physics-based puzzle game where you strategically launch projectiles to demolish intricate structures. Master dynamic physics and diverse materials across hundreds of challenging levels with a vibrant carnival theme.

**Highlights:** Physics-based destruction puzzles, Diverse materials and object reactions, Hundreds of challenging levels, One-tap cannonball launching, Satisfying chain reactions, Vibrant carnival theme

**In-app purchases (13)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CarnivalPack_1.99 | $1.99 | one-time |
| CarnivalPack_4.99 | $4.99 | one-time |
| CarnivalPack_7.99 | $7.99 | one-time |
| CarnivalPack_NoAds | $7.99 | one-time |
| CarnivalPack_9.99 | $9.99 | one-time |
| CarnivalPack_14.99 | $14.99 | one-time |
| CarnivalPack_19.99 | $19.99 | one-time |
| CarnivalPack_29.99 | $29.99 | one-time |
| CarnivalPack_39.99 | $39.99 | one-time |
| CarnivalPack_49.99 | $49.99 | one-time |
| CarnivalPack_59.99 | $59.99 | one-time |
| CarnivalPack_74.99 | $74.99 | one-time |
| CarnivalPack_99.99 | $99.99 | one-time |


## Frequently asked questions

### Is Block Stack free?

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

### Is Carnival Knockdown free?

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

### Which has better reviews, Block Stack or Carnival Knockdown?

Carnival Knockdown is rated higher. Block Stack averages 4.6 out of 5 from 9 ratings, while Carnival Knockdown averages 4.9 from 7.1K ratings.

### Do Block Stack or Carnival Knockdown have ads?

Both Block Stack and Carnival Knockdown show ads.

### Which is updated more often, Block Stack or Carnival Knockdown?

Block Stack ships an update every 4 days, and Carnival Knockdown every 3 days. Most recently, Block Stack was updated on October 1, 2026 and Carnival Knockdown on October 22, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*