# Alien Attack vs Polygon Defense

The clearest difference is update cadence: Alien Attack at daily against Polygon Defense's fortnightly. 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.

Alien Attack ships an update daily, Polygon Defense fortnightly. The most recent releases landed on August 22, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | Alien Attack | Polygon Defense |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (3 ratings)](https://appshunter.io/ios/app/alien-attack-rpg-idle-action/id6778897821/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | **Daily** | Fortnightly |
| Monetization | Ad-supported | — |
| Size | 180 MB | 122 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [HAPPY GAME COMPANY TEKNOLOJI ANONIM SIRKETI](https://appshunter.io/developer/1523367113) | [youngchan yoon](https://appshunter.io/developer/6781591716) |

## What reviewers say

### Alien Attack

[App page](https://appshunter.io/ios/app/alien-attack-rpg-idle-action/id6778897821)

Control a rapidly evolving alien lifeform and conquer Earth. Consume humans to grow stronger, unlock new mutations, and dominate every battlefield. Upgrade your abilities and spread your alien domination across the planet.

**Highlights:** Evolve alien lifeform, Consume humans for energy, Unlock new mutations and powers, Action-packed battles, Upgrade abilities, Conquer world locations

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

**In-app purchases:** none


### Polygon Defense

[App page](https://appshunter.io/ios/app/polygon-defense/id6781591712)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Alien Attack free?

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

### Is Polygon Defense free?

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

### Do Alien Attack or Polygon Defense have ads?

Both Alien Attack and Polygon Defense show ads.

### Which is updated more often, Alien Attack or Polygon Defense?

Alien Attack ships an update daily, and Polygon Defense fortnightly. Most recently, Alien Attack was updated on August 22, 2026 and Polygon Defense on September 18, 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.*