# Fly! Linear vs Rail World!

The clearest difference is in-app purchases: Fly! Linear at none against Rail World!'s 1. Fly! Linear also leads on iOS requirement (11.0 vs 15.0). Rail World!'s advantage is update cadence (fortnightly vs every 2 months) and ratings volume (11 vs 1). On price, rating, ads and device support there is nothing between them.

Both are free to download. Rail World! sells 1 one-off in-app purchase. Fly! Linear asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Fly! Linear against 4.9 for Rail World!. That said, the two scores are not equally well evidenced: Rail World! has 11 ratings behind it against 1, so its average is the more settled of the two.

Fly! Linear ships an update every 2 months, Rail World! fortnightly. The most recent releases landed on June 1, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | Fly! Linear | Rail World! |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/fly-linear-shinkansen/id6461774014/reviews)** | [4.9 (11 ratings)](https://appshunter.io/ios/app/rail-world/id6738320324/reviews) |
| Number of ratings | 1 | **11** |
| Positive reviews | — | 90.1% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 2 months | **Fortnightly** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 159 MB | 529 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ayumi Miyazaki](https://appshunter.io/developer/1699956582) | [Katsuya Maezono](https://appshunter.io/developer/1780197564) |

## What reviewers say

### Fly! Linear

[App page](https://appshunter.io/ios/app/fly-linear-shinkansen/id6461774014)

Experience high-speed train adventures using magnetic propulsion. Tap to jump and align colors, accelerating your train through vibrant urban and mountainous stages. Collect coins to unlock new and special vehicles for an exhilarating casual gaming experience.

**Highlights:** Super-high speed train gameplay, Magnet-powered jumps, Easy tap-to-play controls, Colorful urban and mountain stages, Collect coins for new trains, Unlock special vehicles

**Features:** macOS Compatibility

**In-app purchases:** none


### Rail World!

[App page](https://appshunter.io/ios/app/rail-world/id6738320324)

Experience Japanese railways from multiple perspectives. Drive trains as the engineer, observe them like a miniature diorama, or enjoy the scenery as a passenger. This game offers diverse ways to engage with a virtual train world.

**Highlights:** Drive trains as engineer, Diorama view, Passenger view, Explore 20km routes, Future route/vehicle additions

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 早朝、夕方シナリオ | $2.99 | one-time |


## Frequently asked questions

### Is Fly! Linear free?

Fly! Linear is free to download, with no in-app purchases.

### Is Rail World! free?

Rail World! is free to download, with in-app purchases available.

### Which has better reviews, Fly! Linear or Rail World!?

Fly! Linear is rated higher. Fly! Linear averages 5.0 out of 5 from 1 ratings, while Rail World! averages 4.9 from 11 ratings.

### Do Fly! Linear or Rail World! have ads?

Both Fly! Linear and Rail World! show ads.

### Which is updated more often, Fly! Linear or Rail World!?

Fly! Linear ships an update every 2 months, and Rail World! fortnightly. Most recently, Fly! Linear was updated on June 1, 2026 and Rail World! 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.*