# Alien Robot vs Zylon Defenders

The clearest difference is review sentiment: Zylon Defenders at 100% against Alien Robot's 0%. Zylon Defenders also leads on rating (4.8 vs 1.5) and update cadence (every 2 months vs every 34 months). Alien Robot's advantage is iOS requirement (10.0 vs 18.6). On price, ratings volume, 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.

Zylon Defenders holds the better App Store score, 4.8 against 1.5. Both are backed by a comparable volume of ratings — 2 and 4 respectively. Written reviews point the same way: 0% of Alien Robot's written reviews are positive against 100% of Zylon Defenders's.

Alien Robot ships an update every 34 months, Zylon Defenders every 2 months. The most recent releases landed on October 17, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Alien Robot | Zylon Defenders |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.5 (2 ratings)](https://appshunter.io/ios/app/alien-robot/id943794563/reviews) | **[4.8 (4 ratings)](https://appshunter.io/ios/app/zylon-defenders/id1191618583/reviews)** |
| Number of ratings | 2 | **4** |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 34 months | **Every 2 months** |
| Monetization | Free | Free |
| Size | 35 MB | 266 MB |
| Requires iOS | **10.0** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [国财 胡](https://appshunter.io/developer/796061213) | [Jeff Glasse](https://appshunter.io/developer/887910702) |

## What reviewers say

### Alien Robot

[App page](https://appshunter.io/ios/app/alien-robot/id943794563)

This is a fun, casual puzzle game with gorgeous graphics and themed levels. Players must solve challenges and pass hurdles to advance through levels as quickly as possible. It supports phones and tablets and is free to play.

**Highlights:** Casual puzzle gameplay, Themed levels, Gorgeous graphics, Challenging hurdles, Supports phones and tablets, Constantly updated levels

**Features:** macOS Compatibility

**In-app purchases:** none


### Zylon Defenders

[App page](https://appshunter.io/ios/app/zylon-defenders/id1191618583)

Experience a modern take on a classic space combat simulator. Engage in thrilling first-person space battles inspired by a legendary 1979 title. Explore the cosmos and defend against alien threats in this immersive simulation.

**Highlights:** First-person space combat, Real-time simulation, Modern reinterpretation of classic, Space exploration, Alien defense

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Alien Robot free?

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

### Is Zylon Defenders free?

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

### Which has better reviews, Alien Robot or Zylon Defenders?

Zylon Defenders is rated higher. Alien Robot averages 1.5 out of 5 from 2 ratings, while Zylon Defenders averages 4.8 from 4 ratings.

### Do Alien Robot or Zylon Defenders have ads?

Neither Alien Robot nor Zylon Defenders shows ads.

### Which is updated more often, Alien Robot or Zylon Defenders?

Alien Robot ships an update every 34 months, and Zylon Defenders every 2 months. Most recently, Alien Robot was updated on October 17, 2026 and Zylon Defenders on October 9, 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.*