Z21

Name: Z21
Rating: 3.3076923 (805 reviews)
Author: Roco | Fleischmann | Z21

By: Roco | Fleischmann | Z21

Use this app to connect to a Z21 Digital Center

Features & Capabilities

The Z21 app connects your iOS device to the Z21 Digital Center via WLAN, enabling effortless control of your model train layout. Whether managing locomotive libraries, programming digital components, or controlling locomotives with DCC or Motorola decoders, the app provides a sleek touch-based interface that simplifies operation. Users can toggle headlights, trigger sounds, adjust speed, and access all digital functions through an intuitive graphical interface.

Beyond locomotive control, the Z21 app lets you blueprint your railway system to manage switches, signals, and modules with ease. Customize your locomotive library with images for quick identification and download driver cabs for a realistic train driver experience. A demo mode is available to explore features without hardware. Overall, Z21 optimizes digital model train management for hobbyists and enthusiasts seeking seamless mobile operation.

User Growth & Download Statistics

App Games

By:

Roco | Fleischmann | Z21

Downloads:

106,547 195

Rating:

3.31

(805) 1 new ratings

Version:

1.5.3 Last updated: 2026-02-23

Version code:

6583

Creation date:

2018-01-31

Publisher country:

Permissions:

android.permission.READ_PHONE_STATE Very high risk
android.permission.BLUETOOTH Moderate risk
android.permission.BLUETOOTH_CONNECT Moderate risk
android.permission.NEARBY_WIFI_DEVICES Moderate risk
com.google.android.gms.permission.AD_ID Moderate risk
android.permission.ACCESS_WIFI_STATE Low risk
android.permission.INTERNET Low risk
android.permission.WAKE_LOCK Low risk
com.android.vending.BILLING Low risk
com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE Low risk

Size:

103.93MB

Email:

in*****@z21.eu

URLs:

Website ,Privacy policy

Full description:

Source:

Google Play Store

Data ingested on:

2026-06-13

Compare stats and ranking:

Ranking

# 207,216 ▲ 1,686

For Developers

Monetize with App Pass Boost with Extension Booster

Contact the developer

Chrome-Stats does not own this Android app. Please use these information below to contact the Android app developer.

Developed by:

Roco | Fleischmann | Z21

Google Play Store

https://play.google.com/store/apps/details?id=eu.z21.app

Email:

in*****@z21.eu

Website:

http://www.z21.eu

User Reviews

Users appreciate the app's core functionalities like sound control and route setting, but commonly report crashes after updates and problems with the locomotive database. The interface is not user-friendly, especially when controlling multiple trains, and unexpected charges for pro features have caused dissatisfaction. There are also issues with locomotive images being randomly assigned or misplaced, which adds to the frustrations. Despite these problems, some users value the app’s long-term maintenance and configurable settings for improved throttle control.

Pros

App provides great base functions for train control.
Makes sound and accessory control easy and convenient.
Ideal for setting routes with a single button, enhancing usability.
Has been maintained for many years with regular updates.
Allows disabling loco swipe and adjusting throttle sensitivity, improving user experience.

Cons

App crashes frequently after recent updates on various devices.
Locomotive database issues including missing trains and database loading failures.
Interface is unintuitive and lacks synchronization for controlling multiple trains simultaneously.
App forcibly demands payment for pro version to unlock basic features, perceived as unfair.
Pictures of locomotives appear randomly or are mismatched after import, causing confusion.

Recent reviews

Complete scam App demands i pay $17 fror pro version to unlock basic functionality because its buggy DRM can't tell i am using genuine z21 hardware. App is slow and buggy. Base station has no integration of any of the smart features advertised (its all managed in the app) steer clear of the whole z21 system its vry expensivw for next to zero functionality over a basic dcc system

L *****, 2024-12-11

app only lets you control a single train, the interface is unintuitive and doesn't synchronize trains with other controllers on the same base station also the dozen or so preconfigured trains are useless and clutter the selection screen