# SPEED BUS CHALLENGE 3D vs 電車あそび

The clearest difference is in-app purchases: SPEED BUS CHALLENGE 3D at none against 電車あそび's 1. SPEED BUS CHALLENGE 3D also leads on iOS requirement (7.0 vs 15.0). 電車あそび's advantage is update cadence (every 6 days vs every 5 months). On price, ads and device support there is nothing between them.

Both are free to download. 電車あそび sells 1 one-off in-app purchase. SPEED BUS CHALLENGE 3D asks for nothing beyond the download.

SPEED BUS CHALLENGE 3D ships an update every 5 months, 電車あそび every 6 days. The most recent releases landed on October 26, 2026 and November 1, 2026 respectively.

## The numbers

| Metric | SPEED BUS CHALLENGE 3D | 電車あそび |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 5 months | **Every 6 days** |
| Monetization | — | Free with in-app purchases |
| Size | 269 MB | 122 MB |
| Requires iOS | **7.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ArgeWorld](https://appshunter.io/developer/404448295) | [Takahiro Kimura](https://appshunter.io/developer/6775796488) |

## What reviewers say

### SPEED BUS CHALLENGE 3D

[App page](https://appshunter.io/ios/app/speed-bus-challenge-3d/id1348552402)

**In-app purchases:** none


### 電車あそび

[App page](https://appshunter.io/ios/app/id6780509740)

Enjoy a relaxing train driving experience with no difficult rules or time limits. Connect and disconnect trains, explore diverse courses with changing scenery, and transform into a drone or frog for unique gameplay. Collect various trains, items, and photos to decorate and share.

**Highlights:** Connect and disconnect trains, Transform into drone or frog, Explore 7 diverse courses, Collect 71 train types, Photo and decoration features, Create custom train formations

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 広告削除 | $2.99 | one-time |


## Frequently asked questions

### Is SPEED BUS CHALLENGE 3D free?

SPEED BUS CHALLENGE 3D is free to download, with no in-app purchases.

### Is 電車あそび free?

電車あそび is free to download, with in-app purchases available.

### Do SPEED BUS CHALLENGE 3D or 電車あそび have ads?

Both SPEED BUS CHALLENGE 3D and 電車あそび show ads.

### Which is updated more often, SPEED BUS CHALLENGE 3D or 電車あそび?

SPEED BUS CHALLENGE 3D ships an update every 5 months, and 電車あそび every 6 days. Most recently, SPEED BUS CHALLENGE 3D was updated on October 26, 2026 and 電車あそび on November 1, 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.*