More About Z21

Name Z21
Package Name eu.z21.app
Category Entertainment  
Version 1.4.7
Size 209.90M
Requires Android 5.0 and up
Last Updated April 14, 2025

The Z21 App offers a revolutionary way to control your model trains and layout with your iOS device. With the Z21 Digital Center, you can seamlessly connect your model trains to your mobile device via WLAN, allowing for effortless operation and programming. It’s time to take your model train experience to the next level with the Z21 App.

Easy Control with Touch Technology

Gone are the days of complicated control panels and switches. With the Z21 App, controlling your model train layout has never been more convenient. You can manage your entire layout with a simple touch of your device’s screen. Swipe through your locomotive library, activate headlights or sounds with just a tap, and adjust the speed with a drag of your finger. 

Intuitive Graphic Interface

The app’s graphic interface allows you to control your layout with ease. You’ll have immediate access to all the functions of your digital locomotives, including managing switches, signals, and other modules. The layout design is user-friendly, ensuring that even those new to model train control can get the hang of it quickly.

Manage Locomotive Library

The Z21 App helps you keep your locomotive library organized and accessible. You can add individual images for each locomotive, making it easier to identify them at a glance. The app enables you to manage your entire collection within a single application, giving you full control and a perfect overview of all your digital locomotives.

Easy Function Control

With the Z21 App, you no longer need to memorize complicated key combinations to control the functions of your digital locomotives. Instead, the app features simple, intuitive function symbols that represent the different locomotive features, such as lights and sounds. With just one touch, you can activate or deactivate any function.

Create a Custom Blueprint

The app lets you design a blueprint of your railway system, making it easy to control switches, signals, and modules with a single click. You can visualize your entire layout and take control of every part of it from the comfort of your mobile device.

Realistic Control with Driver Cabs

For an immersive experience, you can download driver cabs and control your locomotives from a train driver’s perspective. This feature adds a realistic touch to your model train operations, making the experience even more engaging.

FAQs

1. How do I connect the Z21 App to my model train system?

Simply connect your model train unit and locomotives to the Z21 Digital Center via WLAN. This will enable you to control everything directly from your mobile device.

2. Can I create a blueprint of my railway system with the app?

Yes, the app allows you to create a custom blueprint of your railway layout, enabling you to control switches, signals, and other modules with a single click.

3. How can I manage my locomotive library?

The Z21 App lets you manage your entire locomotive library in one place. You can add images for each locomotive for better organization and easy access.

4. What is the driver cab feature in the Z21 App?

The driver cab feature allows you to control your locomotives from the perspective of a real train driver. Download driver cabs for an immersive experience.

Version History

v1.4.7—26 Dec, 2022

new control station element: crossing

rework of some control station elements (additional 45° turnable)

import of controls station layouts from device (search device)

some bug fixes and stability improvements

v1.4.6—17 Aug, 2022

- Troubleshooting for image selection for locomotives

- Changeover of interface for locomotive database

v1.4.5—9 May, 2022

- Android 12: bug fix share layouts with WiFi

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