The most powerful Z21 control app. Drive locomotives, build switchboards, program decoders — all in one beautiful, native app.
Compatible with all Z21 command stations
Plug & Play
Just connect your iPhone or Mac to the same WiFi network as your Z21 — LocoLink finds it automatically. No cables, no setup files, no configuration headaches.
Features
Professional model train control in a clean, intuitive interface — from basic throttle to advanced layout automation.
Unlimited locomotives with smooth throttle, full function mapping (F0–F31), speed steps, consist support, and a gorgeous driver's cab interface.
Control all turnouts and signals with one tap. German signal system support (HP, VR, KS, SH) with real-time aspect visualization.
One-click routes, automation macros, and automatic shuttle service (Pendeldienst) — your trains run back and forth on schedule while you sit back and enjoy.
Read and write CVs on the programming track or main line. Full speed table editor (CV67–94), quick address programming, and decoder diagnostics.
Connect PlayStation or Xbox controllers for a hands-on driving experience. Analog triggers for throttle, buttons for functions — fully customizable.
Track runtime hours, top speeds, emergency stops, and maintenance schedules for every locomotive. Complete ride logs with session summaries.
macOS Experience
Arrange multiple windows across your displays. Locomotive list, driver's cab, switchboard, turnouts — all open simultaneously, exactly where you want them.
Open locomotives, driver's cab, switchboard, and turnouts in separate windows. Arrange them however you like.
Spread your windows across two or more monitors. Switchboard on one display, driver's cab on another.
Built with SwiftUI. Full keyboard shortcuts, drag-and-drop, and seamless integration with Mission Control and Spaces.
Intuitive Controls
LocoLink's driver's cab gives you a realistic throttle experience with analog gauges, smooth lever control, and real-time speed feedback. On macOS, use your keyboard arrows. On iOS, touch and drag. With a game controller, use the analog triggers.
Voice Control
Hands full trackside? Just ask. LocoLink integrates with Siri so you can control your layout with your voice — no tap required. The only Z21 app with full voice control.
Gallery
Click any screenshot to zoom in. Hover to pause the carousel.
Multi-Controller
Connect simultaneously via the iOS app, the Mac app, a game controller, and a WLAN Maus — each controlling their own locomotive. Perfect for a fun session with family or friends.
Everyone picks a locomotive and drives together on the same layout. Real model railroad fun.
App, physical controller, WLAN Maus — use whatever feels best. All connect to the same Z21 simultaneously.
Create profiles per person with their own color, allowed locomotives, and preferred settings.
Seamless Sync
Add your locomotives on your Mac — they appear instantly on your iPhone trackside. No manual export, no duplicated effort.
Easy Setup
LocoLink's built-in setup wizards guide you through every step — from connecting your Z21 to driving your first locomotive. No manual, no guesswork, no frustration.
Interactive setup guides walk you through connection, locomotive setup, turnout configuration, and more — one step at a time.
No cluttered menus or confusing options. Every screen is designed to be instantly understandable, even for first-time users.
Sensible default settings mean everything works out of the box. Change only what you want — when you're ready.
Start simple, unlock advanced features as you grow. LocoLink grows with your layout and your experience level.
Let's connect your Z21 command station and add your first locomotive.
Why LocoLink
SwiftUI for iOS & macOS. No Java, no Electron. 60fps smooth.
Switchboard, block system, timetables — desktop power, reimagined. CSV import to migrate easily.
Pay once, own forever. Free updates. No monthly fees.
Automatic Pendeldienst — trains run back and forth with timed stops. Set it up and enjoy.
Personal profiles per driver with colors, restrictions, and guest mode. Ideal for clubs & families.
Regular updates, new features. Your feedback directly shapes the product.
Pricing
One-time purchase. No subscriptions. No hidden fees.
View pricing plans →Download LocoLink for free and experience the future of Z21 model train control.