# Billy Box (Stack Attack) vs Merge Puzzle Game

The clearest difference is review sentiment: Merge Puzzle Game at 51% against Billy Box (Stack Attack)'s 0%. Billy Box (Stack Attack)'s advantage is ads (none vs shown) and update cadence (weekly vs monthly). On price, in-app purchases, monetization model and device support there is nothing between them.

Both are free to download. Billy Box (Stack Attack) sells 3 one-off in-app purchases and Merge Puzzle Game sells 12 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Billy Box (Stack Attack) ships an update weekly, Merge Puzzle Game monthly. The most recent releases landed on September 19, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Billy Box (Stack Attack) | Merge Puzzle Game |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.9 (16K ratings)](https://appshunter.io/ios/app/merge-puzzle-game-m2-blocks/id1620319602/reviews)** |
| Number of ratings | — | **16K** |
| Positive reviews | 0.0% of reviews | **51.3% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Weekly** | Monthly |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 57 MB | 172 MB |
| Requires iOS | **9.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Alessandro de Sanctis](https://appshunter.io/developer/694885740) | [Guru Smart Holding Limited](https://appshunter.io/developer/1499790773) |

## What reviewers say

### Billy Box (Stack Attack)

[App page](https://appshunter.io/ios/app/billy-box-stack-attack/id1146154065)

Arrange boxes in challenging levels based on a classic 90s puzzle game. Test your skills and spatial reasoning in this engaging experience.

**Highlights:** Box stacking puzzle gameplay, Multiple difficulty levels, Inspired by 90s vintage puzzles, Modernized puzzle mechanics, Challenging level design

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |
| Unlimited Lives | $0.99 | one-time |
| Unlock all Worlds | $0.99 | one-time |


### Merge Puzzle Game

[App page](https://appshunter.io/ios/app/merge-puzzle-game-m2-blocks/id1620319602)

This is a relaxing puzzle game where you merge numbered blocks to create higher numbers. Train your brain with addictive gameplay and a simple, beautiful design. Enjoy an infinite mode with no time limits and helpful boosters.

**Highlights:** Merge numbered blocks, Train your brain, Infinite mode, No timer, Amazing boosters, Simple, beautiful design

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

**In-app purchases (12)**

| Purchase | Price | Billing |
| --- | --- | --- |
| M2 Blocks Weekly Premium | $4.99 | per 7 days |
| XS GEM PACK | $0.99 | one-time |
| M GEM SALE | $1.99 | one-time |
| Beginner Package | $1.99 | one-time |
| S GEM PACK | $2.99 | one-time |
| L GEM SALE | $3.99 | one-time |
| M GEM PACK | $4.99 | one-time |
| Remove Ads | $6.99 | one-time |
| Gem Boost | $7.99 | one-time |
| L GEM PACK | $9.99 | one-time |
| XL GEM PACK | $24.99 | one-time |
| XXL GEM PACK | $49.99 | one-time |

**What reviewers like**

- 👍 Fun and addictive gameplay
- 💡 Challenging and engaging
- 🧠 Helps improve math skills

**What reviewers complain about**

- 🚧 Excessive and intrusive ads
- 🤯 Ads disrupt gameplay and flow
- 🔋 Ads drain battery life

**Reported bugs**

- Ads cause game to crash or freeze
- Ads randomly interrupt Spotify music playback

**Requested features**

- Reduce frequency and duration of ads
- Offer ad-free premium version
- Add option to track high scores


## Frequently asked questions

### Is Billy Box (Stack Attack) free?

Billy Box (Stack Attack) is free to download, with in-app purchases available.

### Is Merge Puzzle Game free?

Merge Puzzle Game is free to download, with in-app purchases available.

### Do Billy Box (Stack Attack) or Merge Puzzle Game have ads?

Merge Puzzle Game shows ads; Billy Box (Stack Attack) does not.

### Which is updated more often, Billy Box (Stack Attack) or Merge Puzzle Game?

Billy Box (Stack Attack) ships an update weekly, and Merge Puzzle Game monthly. Most recently, Billy Box (Stack Attack) was updated on September 19, 2026 and Merge Puzzle Game on October 1, 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.*