Features & Capabilities

Lineman's Reference - URD is the latest app from Digital Apprentice that will teach linemen and apprentices the basics of underground distribution systems.

Learn how to:

  • Isolate bad cable sections
  • Hipot cable sections
  • Isolate and change bad pad-mounted transformers
  • Troubleshoot underground outages
  • Switch Underground Distribution Loops

Primary Training Labs:

  • Fault Indicators
  • Cable Isolation
  • Hipotting
  • Transformer Isolation

Troubleshooting Labs (with optional quizzes):

  • Beginner (Single Phase)
  • Intermediate (Single Phase)
  • Advanced (Three Phase & Single Phase)

Devices Labs - Break down and inspect the components of URD equipment:

  • Single Phase Padmount
  • Three Phase Padmount
  • Load-Break Elbows

User Growth & Download Statistics

App
By:
Digital Apprentice LLC
Rating:
4.50
(51)
Version:
1.0.03 Last updated: 2025-03-15
Version code:
872347491
Creation date:
2024-11-25
Compatible devices:
Size:
193.13MB
Price:
9.99
URLs:
Privacy policy
Full description:
See detailed description
Source:
Apple Apps Store
Data ingested on:
2026-06-08
Compare stats and ranking:

Ranking

Contact the developer

Chrome-Stats does not own this Apple app. Please use these information below to contact the Apple app developer.
Developed by:
Digital Apprentice LLC
Apple Apps Store
https://apps.apple.com/us/app/linemans-reference-urd/id6478995455

User Reviews

Users consistently praise the app as a solid educational tool for URD concepts, with tutorials and labs highly valued. The experience is engaging and many look forward to upcoming features such as secondary devices and meter bases. A recurring drawback is glitches with the shotgun stick that hinder interactions, though there is quick developer support cited. Overall, the app is well-regarded for learning, with opportunities for bug fixes and content expansion.
Pros
  • Strong educational value for apprentices/linemen and improving understanding of URD concepts.
  • Helpful tutorials and hands‑on labs (e.g., X-Former lab) that reinforce learning.
  • Engaging and enjoyable practice experience with positive overall sentiment.
  • Ongoing development with anticipated features like secondary devices and meter bases.
Cons
  • Shotgun stick control glitches causing unreliable grabbing/moving of items, disrupting simulations.
Recent reviews
I think this app is great for teaching or learning when new to underground power, I think it has a great opportunity to grow and expand on URD devices or systems like thumping wire, service savers and how to set up, cubicles, metering cubicles, or showing more advanced switching with cubicle switches and loops together, or even other URD terminations like t-body’s, potheads, or maybe even splices. I so think it’s a good idea for the secondary pedestal and meter base setup that’s already coming soon. Also adding troubleshooting on secondary may be an idea. Overall awesome app!
by Wi*****, 2026-02-09

I enjoy this app so much, it’s amazing to mess around with this and really challenge yourself. One thing I cannot wait for is the secondary to become available! I’d also like to ask when that’s looking to release?? I’ve been extremely excited to play it.
by Ja*****, 2026-01-11

My foreman recommended this app to learn the trade a little better. It’s helped my understanding of the field a lot. I wish there was an option to turn of the “Fault Indicators” because that is something that I don’t have in my actual field of work. Overall great app, would recommend!
by I'*****, 2025-10-08
View all user reviews ›

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