# Skeleton Invader vs Cosmo Monsters

The clearest difference is in-app purchases: Cosmo Monsters at none against Skeleton Invader's 1. Cosmo Monsters also leads on update cadence (every 2 days vs every 29 months). Skeleton Invader's advantage is ads (none vs shown) and iOS requirement (9.3 vs 11.0). On price and device support there is nothing between them.

Both are free to download. Skeleton Invader sells 1 one-off in-app purchase. Cosmo Monsters asks for nothing beyond the download.

Skeleton Invader ships an update every 29 months, Cosmo Monsters every 2 days. The most recent releases landed on November 11, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | Skeleton Invader | Cosmo Monsters |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 29 months | **Every 2 days** |
| Size | 85 MB | 77 MB |
| Requires iOS | **9.3** | 11.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Guisse Ngourane](https://appshunter.io/developer/455608665) | [Hennadii Bulakh](https://appshunter.io/developer/1658403630) |

## What reviewers say

### Skeleton Invader

[App page](https://appshunter.io/ios/app/skeleton-invader/id1287479772)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 250.000 Neutrons | $2.99 | one-time |


### Cosmo Monsters

[App page](https://appshunter.io/ios/app/cosmo-monsters-paddle-ball/id1661473327)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Skeleton Invader free?

Skeleton Invader is free to download, with in-app purchases available.

### Is Cosmo Monsters free?

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

### Do Skeleton Invader or Cosmo Monsters have ads?

Cosmo Monsters shows ads; Skeleton Invader does not.

### Which is updated more often, Skeleton Invader or Cosmo Monsters?

Skeleton Invader ships an update every 29 months, and Cosmo Monsters every 2 days. Most recently, Skeleton Invader was updated on November 11, 2026 and Cosmo Monsters on November 7, 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.*