# Alien Invader Escape vs Zetta Force 7

The clearest difference is iOS requirement: Zetta Force 7 at 13.0 against Alien Invader Escape's 15.6. On price, update cadence, ads and in-app purchases there is nothing between them.

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

Alien Invader Escape ships an update every 18 months, Zetta Force 7 every 27 months. The most recent releases landed on October 12, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Alien Invader Escape | Zetta Force 7 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | **Every 18 months** | Every 27 months |
| Size | 14 MB | 136 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 9+ |
| Developer | [Tang Cho man](https://appshunter.io/developer/592719186) | [Galatic Droids](https://appshunter.io/developer/806182439) |

## What reviewers say

### Alien Invader Escape

[App page](https://appshunter.io/ios/app/alien-invader-escape/id858894874)

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

**In-app purchases:** none


### Zetta Force 7

[App page](https://appshunter.io/ios/app/zetta-force-7/id1063742632)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Alien Invader Escape free?

Alien Invader Escape is free to download, with no in-app purchases.

### Is Zetta Force 7 free?

Zetta Force 7 is free to download, with no in-app purchases.

### Do Alien Invader Escape or Zetta Force 7 have ads?

Both Alien Invader Escape and Zetta Force 7 show ads.

### Which is updated more often, Alien Invader Escape or Zetta Force 7?

Alien Invader Escape ships an update every 18 months, and Zetta Force 7 every 27 months. Most recently, Alien Invader Escape was updated on October 12, 2026 and Zetta Force 7 on October 16, 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.*