# Zéphyr, fusée vs Castrum

The clearest difference is update cadence: Castrum at every 2 months against Zéphyr, fusée's every 32 months. Zéphyr, fusée's advantage is iOS requirement (12.0 vs 18.0). 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.

Zéphyr, fusée ships an update every 32 months, Castrum every 2 months. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Zéphyr, fusée | Castrum |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.0 (1 ratings)](https://appshunter.io/ios/app/castrum/id1465245349/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 40.9% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 32 months | **Every 2 months** |
| Monetization | — | Free |
| Size | 123 MB | 1.4 GB |
| Requires iOS | **12.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [les éditions volumiques](https://appshunter.io/developer/495904732) | [DEPARTEMENT DE L AUDE](https://appshunter.io/developer/1465245348) |

## What reviewers say

### Zéphyr, fusée

[App page](https://appshunter.io/ios/app/zephyr-fusee/id938708179)

**Features:** macOS Compatibility

**In-app purchases:** none


### Castrum

[App page](https://appshunter.io/ios/app/castrum/id1465245349)

Develop a fortified village in 13th-century Occitania to defend against crusaders and aid pursued Cathars. Explore Cathar Country, collect items, and craft resources to preserve local culture. Engage in mini-games at historical monuments for unique rewards.

**Highlights:** Develop a fortified village, Collect and craft items, Explore Cathar Country, Geotagged mini-games at monuments, Historical narrative, Unlock legendary tools

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Zéphyr, fusée free?

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

### Is Castrum free?

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

### Do Zéphyr, fusée or Castrum have ads?

Neither Zéphyr, fusée nor Castrum shows ads.

### Which is updated more often, Zéphyr, fusée or Castrum?

Zéphyr, fusée ships an update every 32 months, and Castrum every 2 months. Most recently, Zéphyr, fusée was updated on November 6, 2026 and Castrum on November 3, 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.*