# Castle Force! vs Alien Defense

The clearest difference is ads: Castle Force! at none against Alien Defense's shown. Castle Force! also leads on iOS requirement (12.0 vs 15.0). On price, 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.

## The numbers

| Metric | Castle Force! | Alien Defense |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (2 ratings)](https://appshunter.io/ios/app/castle-force/id6752807619/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | — | Every 2 weeks |
| Monetization | Free | — |
| Size | 685 MB | 284 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 9+ |
| Developer | [Vincent Bonchaud](https://appshunter.io/developer/1602965787) | [PLAYGENIX EDTECH INC.](https://appshunter.io/developer/6784856448) |

## What reviewers say

### Castle Force!

[App page](https://appshunter.io/ios/app/castle-force/id6752807619)

Lead a mobile fortress through a war-torn land, defending a convoy from raiders and monsters. Gather resources, upgrade your castle with new weapons and modules, and make strategic decisions to ensure your people's survival.

**Highlights:** Defend the convoy from enemies, Collect and upgrade weapons, Strategic resource management, Engage in epic battles, Expand and customize your castle

**Features:** macOS Compatibility

**In-app purchases:** none


### Alien Defense

[App page](https://appshunter.io/ios/app/alien-defense-space-tower-rts/id6776451528)

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

**In-app purchases:** none


## Frequently asked questions

### Is Castle Force! free?

Castle Force! is free to download, with no in-app purchases.

### Is Alien Defense free?

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

### Do Castle Force! or Alien Defense have ads?

Alien Defense shows ads; Castle Force! does not.

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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.*