# RailRunner DCC WiFi Throttle — DCC Model Railway Controller

> Universal DCC WiFi throttle for digital model railway control. (iPhone/iPad app by John Gymer.)

- Source: https://appshunter.io/ios/app/railrunner-dcc-wifi-throttle/id6744852952 (this page in markdown: same URL + `.md`)
- Developer: [John Gymer](https://appshunter.io/developer/1809570731)
- Category: Games, Simulation
- Price: $14.99
- Rating: 5.00/5 from 2 App Store ratings · 9 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.6 · 34 MB
- Languages: American English
- Released: 2025-04-22
- Data updated: 2026-08-24
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/railrunner-dcc-wifi-throttle/id6744852952/reviews.md

## What is RailRunner DCC WiFi Throttle?

YouChoos RailRunner - the easy way to run your digital model railway.
Universal DCC WiFi Throttle talks to many DCC command stations over WiThrottle, Z21, ECoS, LocoNet and XpressNet protocols.
Manage your model railway layouts, track plans, locomotives and accessories, and drive them all easily, with RailRunner's intuitive interface.
Provides decoder programming via programming track and POM (programming on the main), as well as RailCom on DCC systems that support it.

## Key features

- Universal DCC WiFi throttle
- Supports WiThrottle, Z21, ECoS, LocoNet, XpressNet
- Manage layouts, locomotives, accessories
- Intuitive interface for driving trains
- Decoder programming (programming track & POM)
- RailCom support

## Recent user reviews (9 of 9)

All indexed reviews: https://appshunter.io/ios/app/railrunner-dcc-wifi-throttle/id6744852952/reviews.md

### 5/5 — Best DCC App on the market

*2026-04-08*

I’ve tried a few apps and this is by far my favourite. Easy to use, intuitive and works great with my DCC-EX CSB1. Programming and updating functions on my sound locos are a doddle. 
Set up and connecting point motors is easy. The support if you need it is good. I’ve imported my locos from my phone to iPad which was easy. Hats off to the developers!

### 5/5 — Easily the best throttle app for use with DCC-EX

*2026-03-23*

Easily the best throttle app for use with DCC-EX.  I tried nearly all of them, and this app is feature rich, has a logical interface and seems to be in active development.

### 5/5 — This is the BEST DCC throttle app!

*2026-03-12*

I use this app with a Digitrax command station and their LNWI WiFi interface. I have the app installed on both my iPhone and iPad, and it works beautifully on both. There are so many great features that I doubt I could describe them all in a single review. For running trains, I love that you can fully customize each locomotive in your roster with custom function keys and an uploaded picture of the loco, which makes it very easy to find the loco in your roster. 

Setting up consists is a breeze, and you can roughly speed match them right in the app, as well as set lighting and direction for each loco in the consist. 

Perhaps my favorite feature is the ability to control turnouts from the app using a touch screen schematic of your layout. You will have to create the schematic outside the app and then upload an image. Then you place turnout icons over the image. The icons are mapped to stationary decoders controlling the turnouts and will show which way the switch is set. Tap on it and the switch motor throws the turnout. You can set up multiple schematics for different sections of your layout. This feature alone is worth the price of the app!

The downsides are relatively minor. The biggest one is that you cannot program CVs through the app if you are using the Digitrax system (this may not be true with other system protocols).  Secondly is that if you have the app on more than one device, you will have to make changes to each device separately. There is a handy feature to copy loco and device rosters from one device to another by use of a QR code (very clever!), but it won’t transfer pictures of locomotives or layout schematic images. 

FYI, I have been using this app for about 6 weeks. At first there were some bugs, but I sent an email describing my issues to the developer. He communicated back to me promptly, and all of the issues that I encountered were addressed in a subsequent software update. He also took some recommendations for improvements and added those as well. Thank you John! Love your app!!  And can’t wait to see future improvements. It will only get better, I’m sure.

### 5/5 — All you need

*2026-03-02*

Used other apps before that have been incredibly expensive and nowhere near as good as this.

Has stood up to exhibition use and been absolutely flawless, barely uses any battery - can start a day at a show on 100% and be at 75% by close (iPhone 16 pro max). Works perfectly with an ECoS and turned what you need a degree in computer science to use into something my grandad can pick up and programme.

Seriously impressed and saved me a fortune replacing an ESU handheld.

Lads and lasses at youchoos - I salute you

### 5/5 — Top WiFi Throttle

*2026-01-15*

Easy app to use, instantly found my DCC EX CS1 and JMRI.  Has the ability to read and write CVs on programming track or main. Very responsive control. Functions can be ordered as you want them. Loco roster loads with the app.
An excellent app for controlling a DCC layout.
All topped with first class support.

### 5/5 — Easy way to make my NCE system wireless

*2026-01-14*

Looks great, easy to use, easy set up if you read the clear and comprehensive instructions, great support. I absolutely love it. If you have YouChoos sound decoders you can even import the loco’s configuration

### 5/5 — Really useful,software

*2025-08-16*

Actually works, allows me to programme my locos and easy to setup locos and accessories including setting up useful labels for the function commands for each loco as all of mine have sound fitted. Didn’t need manual, but I did have to manually set my dcc commander ip address even thought found it 🤓

### 5/5 — Super bit of software

*2025-06-01*

Easy to use and great support,
If I could I would give it a six.
Easily connects with Dcc ex and Jmri.

### 5/5 — Does what it says on the label!

*2025-05-07*

What a neat piece of software. Easy to use and navigate around.
Setting up locos is simple (even easier if you have installed Zimo decoders with “Tweak and Drive”, as you can download loco setups straight to the app from their website.)
Overcomes a lot of the limitations of the free Z21 app if you happen to use the Yamorc or Digikeijs control modules (multiple locos can be driven, etc)
Simple track control by adding turnouts and switches to a picture, photo or plan of your existing layout.
Well done in filling a void in the market.

## Frequently asked questions about RailRunner DCC WiFi Throttle

### What DCC command stations does RailRunner support?

RailRunner supports a wide range of DCC command stations through protocols like WiThrottle, Z21, ECoS, LocoNet, and XpressNet, offering broad compatibility for model railway enthusiasts.

### Can I program decoders with RailRunner?

Yes, RailRunner allows for decoder programming using both a dedicated programming track and Programming on the Main (POM) functionality, making it a comprehensive control solution.

### Does RailRunner have ads?

No, RailRunner is an ad-free application, providing an uninterrupted experience for controlling your digital model railway.

### What devices is RailRunner available on?

RailRunner is designed for iOS devices, including iPhone and iPad, allowing users to manage their model railways from their preferred Apple hardware.

### How often is RailRunner updated?

The latest version of RailRunner is 1.0.20, and it was last updated on March 23, 2026, indicating active development and support for the application.

### What is the age rating for RailRunner?

RailRunner has an age rating of 4+, making it suitable for a wide range of users interested in model railways, including younger enthusiasts.

### What is the price of RailRunner?

RailRunner is available for a one-time purchase of $14.99, offering full access to its features without recurring subscription fees.

### Does RailRunner support RailCom?

Yes, RailRunner provides RailCom support on DCC systems that are compatible with this feature, enhancing communication and feedback from your locomotives.

## Version history (last 5 releases)

### 1.0.24 — 2026-08-18

Add support for Zimo FS840 & MS420.
Fixed duplicate Group on restart + old deleted Groups coming back.
New pref to sort Accessories by Name instead of DCC addr.
Default State can be defined for each Accessory.
Improved icons for Straight Points.
New Curved Points accessory types.
Wrap FKey captions over 2 lines where possible (good for larger screened devices).
Update link to User Manual.
New pref to delay Z21 POM read series

### 1.0.22 — 2026-05-18

Added ROUTES - marcos to set sequences of Accessories to specific states.
Request additional permissions on Android for accessing photos (Android 14+).
Catch errors in photo selection better.

### 1.0.21 — 2026-04-20

Sometimes get duplicates when importing using QR Code (mainly iOS).
Application hang when using fkey 29 and above - only on certain system types.
Improved logging facilities - separated categories of functionality so you have control of which aspects are logged.

### 1.0.20 — 2026-03-23

Fixed XpressNet issue not sending throttle updates (problem introduced in 1.0.19).
Fixed XpressNet issue not sending accessory OFF commands.
Fixed issue with CV#29 value writing loco address.
New logging option to just log comms messages.
Fixed issue with latching/enabling definition of loco fkeys applying to the wrong fkey if they are not in default sequence.
Faster identify of Zimo non-sound decoders - no longer reads CVs105-106 and CVs254-256 if a non-sound decoder is detected, as these are not relevant.

### 1.0.19 — 2026-03-14

split screen throttle for control of 2 locos drag loco image to swap places
improved detection of type of WiServer system - MRC, WiFiTrax, DigiTrax etc
better support for identifying ESU decoders including initial support for paged CVs (CV#31/32)

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## Related topics

[railrunner dcc wifi throttle](https://appshunter.io/ios/topics/railrunner-dcc-wifi-throttle)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-24.*
