# Blocks Stack Puzzle vs Slide Knockout

The clearest difference is ads: Blocks Stack Puzzle at none against Slide Knockout's shown. Blocks Stack Puzzle also leads on iOS requirement (10.0 vs 15.0). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Blocks Stack Puzzle sells 2 one-off in-app purchases and Slide Knockout sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Both ship on a similar rhythm, roughly every 10 days. The most recent releases landed on October 11, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Blocks Stack Puzzle | Slide Knockout |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (28 ratings)](https://appshunter.io/ios/app/blocks-stack-puzzle/id1575681456/reviews)** | — |
| Number of ratings | **28** | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 10 days | Every 10 days |
| Monetization | Free with in-app purchases | — |
| Size | 62 MB | 383 MB |
| Requires iOS | **10.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Vnstart LLC](https://appshunter.io/developer/1467854570) | [Andrey Kutuzov](https://appshunter.io/developer/1610762419) |

## What reviewers say

### Blocks Stack Puzzle

[App page](https://appshunter.io/ios/app/blocks-stack-puzzle/id1575681456)

A brain puzzle game where you fill empty cells by stacking colorful blocks in the correct orientation. It offers over 1000 levels, starting easy and progressively increasing in difficulty. Enjoy a minimalist 3D art design while challenging your mind.

**Highlights:** Fill empty cells with colorful blocks, Stack blocks in correct orientation, Over 1000 challenging levels, Minimalist 3D art design, Easy to play touch controls

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |
| Unlock All | $0.99 | one-time |


### Slide Knockout

[App page](https://appshunter.io/ios/app/slide-knockout-ragdoll-pvp/id6760192867)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 50 Coins | $0.99 | one-time |
| 100 Coins | $1.99 | one-time |
| Remove ADs | $1.99 | one-time |
| 250 Coinst | $4.99 | one-time |


## Frequently asked questions

### Is Blocks Stack Puzzle free?

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

### Is Slide Knockout free?

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

### Do Blocks Stack Puzzle or Slide Knockout have ads?

Slide Knockout shows ads; Blocks Stack Puzzle does not.

### Which is updated more often, Blocks Stack Puzzle or Slide Knockout?

Blocks Stack Puzzle ships an update every 10 days, and Slide Knockout every 10 days. Most recently, Blocks Stack Puzzle was updated on October 11, 2026 and Slide Knockout on October 12, 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.*