# Guide Byzantine Monuments vs The Castle App

The clearest difference is ads: Guide Byzantine Monuments at none against The Castle App's shown. Guide Byzantine Monuments also leads on iOS requirement (15.6 vs 17.0). On price, update cadence, 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.

Guide Byzantine Monuments ships an update every 5 months, The Castle App every 3 months. The most recent releases landed on September 11, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | Guide Byzantine Monuments | The Castle App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/the-castle-app/id6737998437/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 5 months | **Every 3 months** |
| Monetization | — | Ad-supported |
| Size | 256 MB | 92 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [DIADRASIS LADAS I. & CO O.E.](https://appshunter.io/developer/1163797391) | [Kathleen Smith](https://appshunter.io/developer/1573994212) |

## What reviewers say

### Guide Byzantine Monuments

[App page](https://appshunter.io/ios/app/guide-byzantine-monuments/id6473516659)

**Features:** macOS Compatibility

**In-app purchases:** none


### The Castle App

[App page](https://appshunter.io/ios/app/the-castle-app/id6737998437)

Explore castles and historic sites worldwide. Save your favorites, get directions, and plan your next adventure. Discover hidden ruins and famous landmarks all in one convenient map.

**Highlights:** Discover nearby castles and ruins, Plan trips with saved locations, Get directions to sites, View key information before visiting, Explore famous landmarks and hidden ruins, No account required for exploration

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

**In-app purchases:** none


## Frequently asked questions

### Is Guide Byzantine Monuments free?

Guide Byzantine Monuments is free to download, with no in-app purchases.

### Is The Castle App free?

The Castle App is free to download, with no in-app purchases.

### Do Guide Byzantine Monuments or The Castle App have ads?

The Castle App shows ads; Guide Byzantine Monuments does not.

### Which is updated more often, Guide Byzantine Monuments or The Castle App?

Guide Byzantine Monuments ships an update every 5 months, and The Castle App every 3 months. Most recently, Guide Byzantine Monuments was updated on September 11, 2026 and The Castle App on September 22, 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.*