# Zylon Defenders vs Space Outpost

The clearest difference is ads: Zylon Defenders at none against Space Outpost's shown. Zylon Defenders also leads on monetization model (free vs ad-supported). Space Outpost's advantage is update cadence (daily vs every 2 months) and rating (5.0 vs 4.8). On price, review sentiment, ratings volume 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.

Space Outpost holds the better App Store score, 5.0 against 4.8. Both are backed by a comparable volume of ratings — 4 and 2 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

Zylon Defenders ships an update every 2 months, Space Outpost daily. The most recent releases landed on November 2, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Zylon Defenders | Space Outpost |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (4 ratings)](https://appshunter.io/ios/app/zylon-defenders/id1191618583/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/space-outpost/id6772625531/reviews)** |
| Number of ratings | **4** | 2 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Daily** |
| Monetization | **Free** | Ad-supported |
| Size | 266 MB | 78 MB |
| Requires iOS | 18.6 | **16.4** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [Jeff Glasse](https://appshunter.io/developer/887910702) | [Steven Brown](https://appshunter.io/developer/1896142200) |

## What reviewers say

### 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


### Space Outpost

[App page](https://appshunter.io/ios/app/space-outpost/id6772625531)

Defend your outpost against relentless alien hordes in this sci-fi tower defense game. Strategically build and upgrade defensive towers, deploy mobile units, and utilize powerful orbital strikes to save the sun. Play offline and one-handed.

**Highlights:** Campaign across unique planets, Diverse tower and unit types, Mobile strike units and orbital powerups, Multiple enemy types and bosses, Classic and Sudden Death game modes, Offline and one-handed play, Unlockable towers, units, and powerups

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

**In-app purchases:** none


## Frequently asked questions

### Is Zylon Defenders free?

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

### Is Space Outpost free?

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

### Which has better reviews, Zylon Defenders or Space Outpost?

Space Outpost is rated higher. Zylon Defenders averages 4.8 out of 5 from 4 ratings, while Space Outpost averages 5.0 from 2 ratings.

### Do Zylon Defenders or Space Outpost have ads?

Space Outpost shows ads; Zylon Defenders does not.

### Which is updated more often, Zylon Defenders or Space Outpost?

Zylon Defenders ships an update every 2 months, and Space Outpost daily. Most recently, Zylon Defenders was updated on November 2, 2026 and Space Outpost on October 31, 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.*