# RailNetwork vs NGL Go for Sub Driver

The clearest difference is ads: NGL Go for Sub Driver at none against RailNetwork's shown. On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

RailNetwork ships an update monthly, NGL Go for Sub Driver every 3 weeks. The most recent releases landed on November 8, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | RailNetwork | NGL Go for Sub Driver |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 70.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Monthly | **Every 3 weeks** |
| Monetization | Ad-supported | — |
| Size | 115 MB | 63 MB |
| Requires iOS | 18.0 | 18.0 |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Byeonghyeon Jeon](https://appshunter.io/developer/1696559673) | [NGL INNOVATION INC](https://appshunter.io/developer/1763179079) |

## What reviewers say

### RailNetwork

[App page](https://appshunter.io/ios/app/railnetwork-seoul-subway-live/id6474718165)

Track the real-time location of subway trains in the Seoul metropolitan area displayed on a route map. View schedules, track positions, and train car information when available. Accuracy is not guaranteed, and the app is independent of railway operators.

**Highlights:** Real-time train location tracking, Display on route map, View train schedules, Track train car information, Supports multiple devices

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


### NGL Go for Sub Driver

[App page](https://appshunter.io/ios/app/ngl-go-for-sub-driver/id6739236788)

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

**In-app purchases:** none


## Frequently asked questions

### Is RailNetwork free?

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

### Is NGL Go for Sub Driver free?

NGL Go for Sub Driver is free to download, with no in-app purchases.

### Do RailNetwork or NGL Go for Sub Driver have ads?

RailNetwork shows ads; NGL Go for Sub Driver does not.

### Which is updated more often, RailNetwork or NGL Go for Sub Driver?

RailNetwork ships an update monthly, and NGL Go for Sub Driver every 3 weeks. Most recently, RailNetwork was updated on November 8, 2026 and NGL Go for Sub Driver on October 30, 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.*