# Lineman's Reference - URD

> Padmounts Cables and Switching

Canonical page: [https://chrome-stats.com/d/id6478995455](https://chrome-stats.com/d/id6478995455)

## Overview

- **ID:** `id6478995455`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** Digital Apprentice LLC
- **Category:** Education
- **Rating:** 4.50 / 5 (65 ratings)
- **Version:** 1.5.0
- **Last updated:** 2026-09-07
- **First published:** 2024-11-25
- **Size:** 193 MB
- **Data as of:** 2026-09-22
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/linemans-reference-urd/id6478995455)
- **Privacy policy:** [http://digitalapprentice.net/privacy](http://digitalapprentice.net/privacy)

## Description

**Lineman's Reference - URD** by Digital Apprentice teaches linemen and apprentices the fundamentals of underground distribution systems. Learn to isolate faulty cable sections, perform hipot testing, troubleshoot underground outages, switch URD loops, and isolate or replace pad-mounted transformers.

The app includes training labs covering fault indicators, cable isolation, hipotting, and transformer isolation. Optional troubleshooting quizzes range from beginner single-phase scenarios to advanced three-phase and single-phase challenges. Device labs also explain the components of single-phase padmounts, three-phase padmounts, and load-break elbows.

## Rankings

- #160,671 — Overall

## Review summary

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.

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Source: [Chrome-Stats](https://chrome-stats.com/d/id6478995455)