# Invasion vs Alien Whack Attack

The clearest difference is update cadence: Alien Whack Attack at every 5 weeks against Invasion's every 14 months. 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.

Invasion ships an update every 14 months, Alien Whack Attack every 5 weeks. The most recent releases landed on October 3, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Invasion | Alien Whack Attack |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 14 months | **Every 5 weeks** |
| Size | 19 MB | 105 MB |
| Requires iOS | **11.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Safak Yalcinkaya](https://appshunter.io/developer/1626278233) | [Shinya Okubo](https://appshunter.io/developer/1831635146) |

## What reviewers say

### Invasion

[App page](https://appshunter.io/ios/app/invasion-first-touch/id1626290765)

**Features:** macOS Compatibility

**In-app purchases:** none


### Alien Whack Attack

[App page](https://appshunter.io/ios/app/alien-whack-attack/id6749657163)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Invasion free?

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

### Is Alien Whack Attack free?

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

### Do Invasion or Alien Whack Attack have ads?

Both Invasion and Alien Whack Attack show ads.

### Which is updated more often, Invasion or Alien Whack Attack?

Invasion ships an update every 14 months, and Alien Whack Attack every 5 weeks. Most recently, Invasion was updated on October 3, 2026 and Alien Whack Attack on October 2, 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.*