# Slithering Assassin vs Railroad Conductor

The clearest difference is in-app purchases: Railroad Conductor at none against Slithering Assassin's 3. Railroad Conductor also leads on update cadence (every 6 days vs every 16 months). Slithering Assassin's advantage is ads (none vs shown) and iOS requirement (10.0 vs 12.0). On price and device support there is nothing between them.

Both are free to download. Slithering Assassin sells 3 one-off in-app purchases. Railroad Conductor asks for nothing beyond the download.

Slithering Assassin ships an update every 16 months, Railroad Conductor every 6 days. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Slithering Assassin | Railroad Conductor |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.5 (4 ratings)](https://appshunter.io/ios/app/railroad-conductor/id6517355003/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | — | 66.7% of reviews |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 16 months | **Every 6 days** |
| Monetization | — | Ad-supported |
| Size | 12 MB | 76 MB |
| Requires iOS | **10.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Armchair Engineering](https://appshunter.io/developer/398901339) | [杭威宇 卢](https://appshunter.io/developer/1408347720) |

## What reviewers say

### Slithering Assassin

[App page](https://appshunter.io/ios/app/slithering-assassin/id1013904672)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Upgrade - Reduced Price | $0.99 | one-time |
| Full Upgrade - Regular Price | $1.99 | one-time |
| Full Upgrade - Hero Price | $3.99 | one-time |


### Railroad Conductor

[App page](https://appshunter.io/ios/app/railroad-conductor/id6517355003)

Guide colored trains into matching tunnels by drawing safe routes. Avoid collisions and solve puzzles by determining the correct train order. This addictive 3D game challenges your logic and planning skills.

**Highlights:** 3D train simulation, Route drawing gameplay, Color-matching tunnels, Collision avoidance, Order-based puzzles

**In-app purchases:** none


## Frequently asked questions

### Is Slithering Assassin free?

Slithering Assassin is free to download, with in-app purchases available.

### Is Railroad Conductor free?

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

### Do Slithering Assassin or Railroad Conductor have ads?

Railroad Conductor shows ads; Slithering Assassin does not.

### Which is updated more often, Slithering Assassin or Railroad Conductor?

Slithering Assassin ships an update every 16 months, and Railroad Conductor every 6 days. Most recently, Slithering Assassin was updated on October 26, 2026 and Railroad Conductor 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.*