# Castle Founder vs Train Invasion

The clearest difference is rating: Castle Founder at 4.4 against Train Invasion's 3.0. Castle Founder also leads on ads (none vs shown) and review sentiment (50% vs 25%). Train Invasion's advantage is in-app purchases (none vs 7) and update cadence (every 2 months vs every 56 months). On price and device support there is nothing between them.

Both are free to download. Castle Founder sells 7 one-off in-app purchases. Train Invasion asks for nothing beyond the download.

Castle Founder holds the better App Store score, 4.4 against 3.0. Both are backed by a comparable volume of ratings — 22 and 5 respectively. Written reviews point the same way: 50% of Castle Founder's written reviews are positive against 25% of Train Invasion's.

Castle Founder ships an update every 56 months, Train Invasion every 2 months. Both last shipped on October 24, 2026.

## The numbers

| Metric | Castle Founder | Train Invasion |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (22 ratings)](https://appshunter.io/ios/app/castle-founder/id1483307686/reviews)** | [3.0 (5 ratings)](https://appshunter.io/ios/app/train-invasion/id6751881247/reviews) |
| Number of ratings | **22** | 5 |
| Positive reviews | **50.0% of reviews** | 25.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 56 months | **Every 2 months** |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 651 MB | 201 MB |
| Requires iOS | **10.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 9+ | 4+ |
| Developer | [Caelum Star Limited](https://appshunter.io/developer/1747252764) | [Kiwert](https://appshunter.io/developer/1426743821) |

## What reviewers say

### Castle Founder

[App page](https://appshunter.io/ios/app/castle-founder/id1483307686)

Build and defend your kingdom by constructing castles, nurturing farmland, and researching technology. Train dragons and battle monsters or other players to expand your territory and achieve victory. Ally with friends worldwide to develop your empire and resist attacks.

**Highlights:** Castle building and defense, Farmland and resource management, Technology research, Dragon cultivation and combat, Territory expansion through warfare, Global player alliances

**Features:** macOS Compatibility

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Gem_$0.99 | $0.99 | one-time |
| Gem_$1.99 | $1.99 | one-time |
| Gem_$4.99 | $4.99 | one-time |
| Gem_$9.99 | $9.99 | one-time |
| Gem_$19.99 | $19.99 | one-time |
| Gem_$49.99 | $49.99 | one-time |
| Gem_$99.99 | $99.99 | one-time |


### Train Invasion

[App page](https://appshunter.io/ios/app/train-invasion/id6751881247)

Defend a runaway train from relentless zombie hordes in this action-packed defense game. Upgrade your character with powerful perks and unique builds to survive increasingly challenging waves and deadly boss battles. Every run offers a new roguelite experience with stylized visuals and immersive gameplay.

**Highlights:** Dynamic zombie wave battles, Perk-based upgrade system, Roguelite progression, Stylized visuals, Train defense gameplay, Boss battles

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Castle Founder free?

Castle Founder is free to download, with in-app purchases available.

### Is Train Invasion free?

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

### Which has better reviews, Castle Founder or Train Invasion?

Castle Founder is rated higher. Castle Founder averages 4.4 out of 5 from 22 ratings, while Train Invasion averages 3.0 from 5 ratings.

### Do Castle Founder or Train Invasion have ads?

Train Invasion shows ads; Castle Founder does not.

### Which is updated more often, Castle Founder or Train Invasion?

Castle Founder ships an update every 56 months, and Train Invasion every 2 months. Most recently, Castle Founder was updated on October 24, 2026 and Train Invasion on October 24, 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.*