# CUBE9 ATTACK vs Classic Blocks HD

The clearest difference is update cadence: Classic Blocks HD at every 9 months against CUBE9 ATTACK's every 18 months. CUBE9 ATTACK's advantage is iOS requirement (13.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

CUBE9 ATTACK ships an update every 18 months, Classic Blocks HD every 9 months. The most recent releases landed on October 9, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | CUBE9 ATTACK | Classic Blocks HD |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/classic-blocks-hd/id1470859473/reviews)** |
| Number of ratings | — | **3** |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 18 months | **Every 9 months** |
| Monetization | — | Ad-supported |
| Size | 65 MB | 100 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Plus Inc. (Japan)](https://appshunter.io/developer/445792061) | [亮 邓](https://appshunter.io/developer/1454684927) |

## What reviewers say

### CUBE9 ATTACK

[App page](https://appshunter.io/ios/app/cube9-attack/id1448660572)

**In-app purchases:** none


### Classic Blocks HD

[App page](https://appshunter.io/ios/app/classic-blocks-hd/id1470859473)

This game offers a relaxing experience with classic block-dropping gameplay. Achieve high scores by clearing lines and strategically using special blocks to overcome challenges. The game ends when the screen fills, testing your spatial reasoning and quick thinking.

**Highlights:** Line clearing for points, Special function blocks, Increasing difficulty, Small package size, Free to play

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is CUBE9 ATTACK free?

CUBE9 ATTACK is free to download, with no in-app purchases.

### Is Classic Blocks HD free?

Classic Blocks HD is free to download, with no in-app purchases.

### Do CUBE9 ATTACK or Classic Blocks HD have ads?

Both CUBE9 ATTACK and Classic Blocks HD show ads.

### Which is updated more often, CUBE9 ATTACK or Classic Blocks HD?

CUBE9 ATTACK ships an update every 18 months, and Classic Blocks HD every 9 months. Most recently, CUBE9 ATTACK was updated on October 9, 2026 and Classic Blocks HD on October 10, 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.*