# SrcpClient — SRCP Client for iOS

> Mobile controller for model railways supporting SRCP, Z21, and WiThrottle protocols. (iPhone/iPad app by Manuel Schreiner.)

- Source: https://appshunter.io/ios/app/srcpclient/id1495402734 (this page in markdown: same URL + `.md`)
- Developer: [Manuel Schreiner](https://appshunter.io/developer/1078770456)
- Category: Entertainment, Utilities
- Price: Free
- Rating: 4.00/5 from 2 App Store ratings · 3 written reviews indexed
- Age rating: 4+
- Requires: iOS 9.3 · 30 MB
- Languages: English, German
- Released: 2020-12-21
- Data updated: 2026-06-01
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/srcpclient/id1495402734/reviews.md

## What is SrcpClient?

The SRCP Client is a mobile controller for model railways

Features:
- 3 locomotive controllers can be used in parallel
- All 3 controllers visible on iPad landscape format
- Speed ​​controller via slider
- Access to all functions via buttons

Protocols:
- SRCP including MFX extension
- Z21 from Fleischmann / Roco
- WiThrottle as used e.g. in JMRI or DCC++EX
- DCC++EX

The SRCP client for iOS can primarily connect to control centrals supporting the SCRP protocol. As a special feature, the SRCP client also supports the Z21 protocol and the WiThrottle protocol as used e.g. DCC++EX, even if these two protocols are not SRCP protocols.

Up to 3 locomotives are currently supported at the same time. The app is primarily designed as a mobile locomotive controller. Speed ​​and the functions of locomotives can be used.

Only one controller at the dame time can be displayed on an iPhone, but it can be switched back and forth between the three controllers. All three controllers are displayed simultaneously on an iPad in landscape.

More information at https://io-expert.com/srcpclientios

## Key features

- Control up to 3 locomotives simultaneously
- Intuitive speed slider
- Access all locomotive functions via buttons
- Supports SRCP, Z21, and WiThrottle protocols
- iPad landscape view displays all 3 controllers
- iPhone view allows switching between controllers

## Recent user reviews (3 of 3)

All indexed reviews: https://appshunter.io/ios/app/srcpclient/id1495402734/reviews.md

### 5/5 — Klappt auf Anhieb!

*2023-12-20, version 1.3*

Getestet mit einer DCC-EX-Controlstation (Arduino Mega 2560 und Ethernet Shield 2).

### 4/5 — Passt!

*2021-11-02, version 1.2*

Funktioniert gut mit iPad und iPhone in Verbindung mit SRCP-Server in Rocrail. Die gesendeten Befehle werde synchron in Rocrail und in der App angezeigt.

### 5/5 — Einfach super

*2021-02-18, version 1.0*

Funktioniert einfach.

## Frequently asked questions about SrcpClient

### How many locomotives can SrcpClient control at once?

SrcpClient can control up to 3 locomotives simultaneously. The app is primarily designed as a mobile locomotive controller, allowing you to manage both speed and functions for each train.

### What protocols does SrcpClient support?

SrcpClient supports the SRCP protocol with MFX extension, the Z21 protocol from Fleischmann/Roco, and the WiThrottle protocol as used in JMRI or DCC++EX. This broad compatibility allows connection to various control centrals.

### Is SrcpClient available on Android?

SrcpClient is currently available for iOS devices, including iPhone and iPad. It is designed to run on these platforms to provide a mobile control solution for model railways.

### How does the display differ between iPhone and iPad?

On an iPhone, only one controller can be displayed at a time, but you can switch between the three supported controllers. On an iPad in landscape mode, all three controllers are displayed simultaneously for a comprehensive overview.

### Does SrcpClient have ads?

No, SrcpClient does not contain advertisements. It is a free application designed for model railway enthusiasts without any ad interruptions.

### What is the age rating for SrcpClient?

SrcpClient has an age rating of 4+. This indicates it is suitable for users of all ages, making it accessible for younger hobbyists as well as adults.

### When was SrcpClient last updated?

The latest version of SrcpClient was released on January 8, 2023. This indicates the app is actively maintained, with recent updates to ensure compatibility and performance.

### What is the user rating for SrcpClient?

SrcpClient has a rating of 4.0 stars based on 2 user reviews. This suggests a generally positive reception from its user base.

## Version history (last 4 releases)

### 1.3 — 2023-01-08

Fixed issue with iOS16

### 1.2 — 2021-03-24

Added the DCC++EX native protocol. For the WiThrottle protocol issues with the F2 button were resolved. Improved stability

### 1.1 — 2021-02-22

Updated HMI in some details. Improved stability and fixed bugs. Support of digital centrals able to process the WiThrottle protocol such as DCC++EX. Thank you to all testers and the overall feedback.

### 1.0 — 2020-12-21

No release notes.

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## More apps by Manuel Schreiner

- [ON-STAGE](https://appshunter.io/ios/app/on-stage/id1541544558)
- [IR Train](https://appshunter.io/ios/app/ir-train/id1547859811)
- [Train Driver](https://appshunter.io/ios/app/train-driver/id1558334503)

All apps by Manuel Schreiner: https://appshunter.io/developer/1078770456

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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 2026-06-01.*