# Buildy Blocks vs Merge Stack

The clearest difference is in-app purchases: Merge Stack at none against Buildy Blocks's 5. Buildy Blocks's advantage is ads (none vs shown) and update cadence (every 2 days vs every 2 months). On price and device support there is nothing between them.

Both are free to download. Buildy Blocks sells 5 one-off in-app purchases. Merge Stack asks for nothing beyond the download.

Buildy Blocks ships an update every 2 days, Merge Stack every 2 months. The most recent releases landed on October 20, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Buildy Blocks | Merge Stack |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (30 ratings)](https://appshunter.io/ios/app/buildy-blocks/id1133990005/reviews)** | — |
| Number of ratings | **30** | — |
| Positive reviews | 32.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Every 2 days** | Every 2 months |
| Monetization | Free with in-app purchases | — |
| Size | 77 MB | 238 MB |
| Requires iOS | **7.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Umbrella Games LLC](https://appshunter.io/developer/1059299541) | [Kite Games](https://appshunter.io/developer/1878111512) |

## What reviewers say

### Buildy Blocks

[App page](https://appshunter.io/ios/app/buildy-blocks/id1133990005)

Build towering structures by precisely stacking blocks. Compete for the highest score in various modes and challenge yourself to keep your tower from tumbling.

**Highlights:** Single tap gameplay, Multiple tower types, Normal mode, Hardcore mode, Game Center leaderboards, Achievements

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Tower Mode | $0.99 | one-time |
| Rail Mode | $0.99 | one-time |
| Ladder Mode | $0.99 | one-time |
| Mode 5 | $0.99 | one-time |
| No ads! | $1.99 | one-time |


### Merge Stack

[App page](https://appshunter.io/ios/app/merge-stack-color-block/id6788709551)

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

**In-app purchases:** none


## Frequently asked questions

### Is Buildy Blocks free?

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

### Is Merge Stack free?

Merge Stack is free to download, with no in-app purchases.

### Do Buildy Blocks or Merge Stack have ads?

Merge Stack shows ads; Buildy Blocks does not.

### Which is updated more often, Buildy Blocks or Merge Stack?

Buildy Blocks ships an update every 2 days, and Merge Stack every 2 months. Most recently, Buildy Blocks was updated on October 20, 2026 and Merge Stack on October 4, 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.*