Engine Driver Throttle

4.7
694 reviews
50K+
Downloads
Content rating
Everyone
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About this app

Engine Driver is a model railroad throttle app for use with JMRI, MRC Wifi or Digitrax LnWi. Connects to WiThrottle server to control one to six DCC locos' or consists' direction, speed, up to 29 user-configurable functions, plus turnouts, routes, power and JMRI web server access. See website for prerequisites, setup, operation and support.
Privacy policy
Updated on
Dec 16, 2025

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
No data collected
Learn more about how developers declare collection
Data isn’t encrypted
Data can’t be deleted
Committed to follow the Play Families Policy

Ratings and reviews

4.7
590 reviews
David Miecznikowski
July 31, 2021
I've had this app for a while now, but didn't get to try it out until I got my Digitrax LnWi. Took it to the local N scale club layout at the Munster Train Depot. Had the LnWi hooked up in a minute and the app working in another two. I had previously installed it so I was already familiar with it. The only set-up issue I had was that the Engine Driver would not see the LnWi. I had to go to the WiFi settings on my Android phone and it found the LnWi and connected immediately. I started of using the single, right side, switching throttle. (There are many to select from in the app.) Selecting locos is as simple as typing their address. Worked perfect, right off the bat. I especially like the way the throttle releases locos. Just click release. No more multi-button presses like on a regular throttle. The only thing I didn't like is that with the switching throttle, you have one vertical slider for speed, with forward from the center, up and reverse from the center, down. The center off position is a bit vague, and you sometimes get the wrong direction for the first couple of speed steps. Might just be my big fingers. So far, I like it more that any of my other throttles. I will continue to experiment with selecting other styles of throttles in the app. OH yea. As I was running last night, a new young fellow, about 11 or 12 years old came into the train store with his Mom and joined the club. (The Northwest Indiana N Scalers) I was able to download the app onto her phone, set it up and he was running in 10 minutes. A really great app.
17 people found this review helpful
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mstevetodd
August 19, 2021
Thanks, David. The Beta has an additional horizontal switching slider that I prefer for my usage. Join the Beta and give it a try! --SteveT
Railfanning Michael
January 1, 2026
app is good but you guys need to fix the app without having to close and refresh the app in order to use it after I go to another app and go back to Engine Driver
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mstevetodd
January 1, 2026
Hi Michael, First report of this. Please contact us via email mstevetodd at gmail dot com so we can gather more details and address the issue.
Mark Hintz
September 7, 2025
I would prefer to give a 5 star review... However, a couple of my devices have developed a weird bug, wherein the function buttons all disappear when a loco is selected. They fade as normal when no loco is selected, and the only way to access functions on the app is to try to consist the same loco -- but then speed control disappears.
2 people found this review helpful
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mstevetodd
September 7, 2025
Hi Mark, Thanks for the feedback. Can you contact me by email so we can debug the issue with you? Mstevetodd at Gmail dot com.

What’s new

* Last version of EngineDriver to support Android 4.x
* Preference Search feature
* Sort button on Recent Turnouts list
* Reworked background and restart processes
* Removed share files to scoped storage.
* Translations: French by Alain Carasso, Chinese by sky8785
* Experimental CV19 Consist tool
* New prefs: autoconnect to named server, autoload locos from prev session, WiThrottle 'd'ispatch instead of 'r'elease, suppress alert beep, EStop all locos when backgrounded
* Bug fixes