# Star Line Defense vs CosmoGen

The clearest difference is update cadence: CosmoGen at every 3 months against Star Line Defense's every 13 months. Star Line Defense's advantage is iOS requirement (12.0 vs 18.6). 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.

Star Line Defense ships an update every 13 months, CosmoGen every 3 months. The most recent releases landed on October 18, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Star Line Defense | CosmoGen |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.3 (4 ratings)](https://appshunter.io/ios/app/star-line-defense/id918445685/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 13 months | **Every 3 months** |
| Monetization | Free | — |
| Size | 22 MB | 10 MB |
| Requires iOS | **12.0** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [国财 胡](https://appshunter.io/developer/796061213) | [pezhman mohammadzadehkordestani](https://appshunter.io/developer/1888276473) |

## What reviewers say

### Star Line Defense

[App page](https://appshunter.io/ios/app/star-line-defense/id918445685)

Engage in a fun strategy defense game where you build towers to prevent enemies from reaching your fortress. Upgrade equipment and skills using in-game currency earned by defeating foes. Enjoy gorgeous graphics and constantly updated levels in this free puzzle experience.

**Highlights:** Tower defense gameplay, Equipment and skill upgrades, Gorgeous graphics, Themed levels, Constant level updates, Free to play

**Features:** macOS Compatibility

**In-app purchases:** none


### CosmoGen

[App page](https://appshunter.io/ios/app/cosmogen/id6761415082)

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

**In-app purchases:** none


## Frequently asked questions

### Is Star Line Defense free?

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

### Is CosmoGen free?

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

### Do Star Line Defense or CosmoGen have ads?

Neither Star Line Defense nor CosmoGen shows ads.

### Which is updated more often, Star Line Defense or CosmoGen?

Star Line Defense ships an update every 13 months, and CosmoGen every 3 months. Most recently, Star Line Defense was updated on October 18, 2026 and CosmoGen on October 25, 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.*