# Space Defender vs SkyTop

The clearest difference is update cadence: SkyTop at weekly against Space Defender's every 15 months. SkyTop also leads on iOS requirement (9.0 vs 12.0). 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.

Space Defender ships an update every 15 months, SkyTop weekly. The most recent releases landed on September 15, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | Space Defender | SkyTop |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (5 ratings)](https://appshunter.io/ios/app/space-defender-ultimate/id1232145880/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 15 months | **Weekly** |
| Monetization | Free | — |
| Size | 14 MB | 97 MB |
| Requires iOS | 12.0 | **9.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 9+ |
| Developer | [ilan TETRUASHVILI](https://appshunter.io/developer/940821251) | [CALURA LTD.](https://appshunter.io/developer/1146712895) |

## What reviewers say

### Space Defender

[App page](https://appshunter.io/ios/app/space-defender-ultimate/id1232145880)

Engage in an addictive space combat experience with vibrant pixel art. Navigate through challenging waves and aim for the highest score to protect the galaxy. This game offers endless replayability and fun.

**Highlights:** Endless gameplay, Challenging and fun, Pixel art animations, 24 different waves, Hi-score competition

**Features:** macOS Compatibility

**In-app purchases:** none


### SkyTop

[App page](https://appshunter.io/ios/app/skytop/id1482099716)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Space Defender free?

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

### Is SkyTop free?

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

### Do Space Defender or SkyTop have ads?

Neither Space Defender nor SkyTop shows ads.

### Which is updated more often, Space Defender or SkyTop?

Space Defender ships an update every 15 months, and SkyTop weekly. Most recently, Space Defender was updated on September 15, 2026 and SkyTop on September 12, 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.*