# Mellow Blocks vs Block Defense

The clearest difference is in-app purchases: Block Defense at none against Mellow Blocks's 1. Block Defense also leads on iOS requirement (13.0 vs 15.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Mellow Blocks sells 1 one-off in-app purchase. Block Defense asks for nothing beyond the download.

Mellow Blocks ships an update every 6 weeks, Block Defense every 2 months. The most recent releases landed on October 8, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Mellow Blocks | Block Defense |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | **Every 6 weeks** | Every 2 months |
| Size | 211 MB | 107 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Onder Genc](https://appshunter.io/developer/1896729124) | [Zorvyn Myxthirn Falkthorpe](https://appshunter.io/developer/6792965832) |

## What reviewers say

### Mellow Blocks

[App page](https://appshunter.io/ios/app/mellow-blocks/id6773086496)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $3.99 | one-time |


### Block Defense

[App page](https://appshunter.io/ios/app/block-defense-tower-war/id6792978108)

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

**In-app purchases:** none


## Frequently asked questions

### Is Mellow Blocks free?

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

### Is Block Defense free?

Block Defense is free to download, with no in-app purchases.

### Do Mellow Blocks or Block Defense have ads?

Both Mellow Blocks and Block Defense show ads.

### Which is updated more often, Mellow Blocks or Block Defense?

Mellow Blocks ships an update every 6 weeks, and Block Defense every 2 months. Most recently, Mellow Blocks was updated on October 8, 2026 and Block Defense on October 6, 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.*