# Rock.io™ vs Alien Attack 3D

The clearest difference is rating: Alien Attack 3D at 5.0 against Rock.io™'s 3.3. Rock.io™'s advantage is in-app purchases (none vs 2) and ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. Alien Attack 3D sells 2 in-app purchases, starting at $19.99 per month. Rock.io™ asks for nothing beyond the download.

Alien Attack 3D holds the better App Store score, 5.0 against 3.3. That said, the two scores are not equally well evidenced: Rock.io™ has 15 ratings behind it against 1, so its average is the more settled of the two.

Rock.io™ ships an update every 2 weeks, Alien Attack 3D every 6 months. Both last shipped on October 24, 2026.

## The numbers

| Metric | Rock.io™ | Alien Attack 3D |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.3 (15 ratings)](https://appshunter.io/ios/app/rockio/id1412000443/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/alien-attack-3d-invasion/id6447258590/reviews)** |
| Number of ratings | **15** | 1 |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 2 weeks** | Every 6 months |
| Monetization | Free | — |
| Size | 194 MB | 124 MB |
| Requires iOS | **8.2** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 9+ | 9+ |
| Developer | [Geisha Tokyo Inc.](https://appshunter.io/developer/304321146) | [FRIENDLY APPS LTD](https://appshunter.io/developer/1514360327) |

## What reviewers say

### Rock.io™

[App page](https://appshunter.io/ios/app/rockio/id1412000443)

Engage in a satisfying battle by smashing objects to grow your rock. Destroy opponents and break them into pieces to become the ultimate victor. The larger your rock gets, the more powerful it becomes.

**Highlights:** Smash objects to grow, Defeat other players, Rock grows with destruction, Destroy larger objects, Satisfying gameplay

**In-app purchases:** none


### Alien Attack 3D

[App page](https://appshunter.io/ios/app/alien-attack-3d-invasion/id6447258590)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| All Bundle Features Unlocked! | $19.99 | per month |
| All AppCentral Games Unlocked! | $39.99 | per month |


## Frequently asked questions

### Is Rock.io™ free?

Rock.io™ is free to download, with no in-app purchases.

### Is Alien Attack 3D free?

Alien Attack 3D is free to download, with in-app purchases available.

### Which has better reviews, Rock.io™ or Alien Attack 3D?

Alien Attack 3D is rated higher. Rock.io™ averages 3.3 out of 5 from 15 ratings, while Alien Attack 3D averages 5.0 from 1 ratings.

### Do Rock.io™ or Alien Attack 3D have ads?

Alien Attack 3D shows ads; Rock.io™ does not.

### Which is updated more often, Rock.io™ or Alien Attack 3D?

Rock.io™ ships an update every 2 weeks, and Alien Attack 3D every 6 months. Most recently, Rock.io™ was updated on October 24, 2026 and Alien Attack 3D on October 24, 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.*