# Alien Swarm 3D Pro vs THUNDON'S TRAIN

The clearest difference is iOS requirement: THUNDON'S TRAIN at 11.0 against Alien Swarm 3D Pro's 13.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Alien Swarm 3D Pro costs $0.99 and THUNDON'S TRAIN $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Alien Swarm 3D Pro ships an update every 38 months, THUNDON'S TRAIN every 19 months. The most recent releases landed on October 6, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Alien Swarm 3D Pro | THUNDON'S TRAIN |
| --- | --- | --- |
| Price | $0.99 | $0.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 38 months | **Every 19 months** |
| Size | 67 MB | 43 MB |
| Requires iOS | 13.0 | **11.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 9+ | 4+ |
| Developer | [Galatic Droids](https://appshunter.io/developer/806182439) | [Hideki Kubo](https://appshunter.io/developer/1512674908) |

## What reviewers say

### Alien Swarm 3D Pro

[App page](https://appshunter.io/ios/app/alien-swarm-3d-pro/id1002857693)

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

**In-app purchases:** none


### THUNDON'S TRAIN

[App page](https://appshunter.io/ios/app/thundons-train/id1514893446)

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

**In-app purchases:** none


## Frequently asked questions

### Is Alien Swarm 3D Pro free?

Alien Swarm 3D Pro costs $0.99, with no in-app purchases.

### Is THUNDON'S TRAIN free?

THUNDON'S TRAIN costs $0.99, with no in-app purchases.

### Do Alien Swarm 3D Pro or THUNDON'S TRAIN have ads?

Neither Alien Swarm 3D Pro nor THUNDON'S TRAIN shows ads.

### Which is updated more often, Alien Swarm 3D Pro or THUNDON'S TRAIN?

Alien Swarm 3D Pro ships an update every 38 months, and THUNDON'S TRAIN every 19 months. Most recently, Alien Swarm 3D Pro was updated on October 6, 2026 and THUNDON'S TRAIN on October 15, 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.*