# Alien Robot Defender Free vs Alien Attack

The clearest difference is ads: Alien Robot Defender Free at none against Alien Attack's shown. Alien Robot Defender Free also leads on review sentiment (80% vs 67%) and monetization model (free vs ad-supported). Alien Attack's advantage is update cadence (daily vs every 50 months) and rating (4.0 vs 3.7). On price, ratings volume, 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 holds the better App Store score, 4.0 against 3.7. Both are backed by a comparable volume of ratings — 3 and 3 respectively. Written reviews complicate that: 80% of Alien Robot Defender Free's written reviews are positive against 67% of Alien Attack's, so the app with the better star average is not the one people write more warmly about.

Alien Robot Defender Free ships an update every 50 months, Alien Attack daily. The most recent releases landed on September 28, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | Alien Robot Defender Free | Alien Attack |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.7 (3 ratings)](https://appshunter.io/ios/app/alien-robot-defender-free/id548626813/reviews) | **[4.0 (3 ratings)](https://appshunter.io/ios/app/alien-attack-rpg-idle-action/id6778897821/reviews)** |
| Number of ratings | 3 | 3 |
| Positive reviews | **80.0% of reviews** | 66.7% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 50 months | **Daily** |
| Monetization | **Free** | Ad-supported |
| Size | 13 MB | 180 MB |
| Requires iOS | **6.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Mike Hempfling](https://appshunter.io/developer/422781074) | [HAPPY GAME COMPANY TEKNOLOJI ANONIM SIRKETI](https://appshunter.io/developer/1523367113) |

## What reviewers say

### Alien Robot Defender Free

[App page](https://appshunter.io/ios/app/alien-robot-defender-free/id548626813)

Engage in a classic side-scrolling shooter, defending against waves of alien robots. Strategically shoot invaders to unlock new levels and achieve high scores. Different robot behaviors add to the challenge.

**Highlights:** Classic side-scrolling gameplay, Battle alien robots, Unlock new levels, High score challenges, Master 40 levels, Sharp shooter bonus

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

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Alien Robot Defender Free free?

Alien Robot Defender Free is free to download, with no in-app purchases.

### Is Alien Attack free?

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

### Which has better reviews, Alien Robot Defender Free or Alien Attack?

Alien Attack is rated higher. Alien Robot Defender Free averages 3.7 out of 5 from 3 ratings, while Alien Attack averages 4.0 from 3 ratings.

### Do Alien Robot Defender Free or Alien Attack have ads?

Alien Attack shows ads; Alien Robot Defender Free does not.

### Which is updated more often, Alien Robot Defender Free or Alien Attack?

Alien Robot Defender Free ships an update every 50 months, and Alien Attack daily. Most recently, Alien Robot Defender Free was updated on September 28, 2026 and Alien Attack 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.*