# INVASIONSTRIKE vs Galaxy Alien Space Attack

The clearest difference is update cadence: Galaxy Alien Space Attack at daily against INVASIONSTRIKE's every 4 days. 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.

INVASIONSTRIKE ships an update every 4 days, Galaxy Alien Space Attack daily. The most recent releases landed on October 10, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | INVASIONSTRIKE | Galaxy Alien Space Attack |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 4 days | **Daily** |
| Size | 194 MB | 87 MB |
| Requires iOS | 14.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Brainstorm Co.,Ltd.](https://appshunter.io/developer/598905478) | [刚 曾](https://appshunter.io/developer/324816540) |

## What reviewers say

### INVASIONSTRIKE

[App page](https://appshunter.io/ios/app/invasionstrike/id6755762731)

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

**In-app purchases:** none


### Galaxy Alien Space Attack

[App page](https://appshunter.io/ios/app/galaxy-alien-space-attack/id6790705228)

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

**In-app purchases:** none


## Frequently asked questions

### Is INVASIONSTRIKE free?

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

### Is Galaxy Alien Space Attack free?

Galaxy Alien Space Attack is free to download, with no in-app purchases.

### Do INVASIONSTRIKE or Galaxy Alien Space Attack have ads?

Both INVASIONSTRIKE and Galaxy Alien Space Attack show ads.

### Which is updated more often, INVASIONSTRIKE or Galaxy Alien Space Attack?

INVASIONSTRIKE ships an update every 4 days, and Galaxy Alien Space Attack daily. Most recently, INVASIONSTRIKE was updated on October 10, 2026 and Galaxy Alien Space Attack on October 12, 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.*