---
title: "Lineman's Reference - URD Revenue"
description: "Lineman's Reference - URD: Underground Lineman Trainer. Download estimates and ios apps rankings, updated daily."
url: https://trendapps.dev/app/ios/6478995455/
markdown: https://trendapps.dev/app/ios/6478995455/index.md
platform: iOS
updated: 2026-09-18
source: TrendApps
license: CC BY 4.0
---

# Lineman's Reference - URD

*Underground Lineman Trainer*

by Digital Apprentice LLC · iOS · Education

## Key metrics

| Metric | Value |
| --- | --- |
| Monthly revenue (store, estimated) | $0 |
| Monthly downloads (estimated) | <3k |
| Rating | 4.5★ (<3k ratings) |
| Price | $9.99 |
| In-app purchases | No |
| Category | Education |
| First seen on the store | November 25, 2024 |
| Last data update | 2026-09-18 |

## Summary

Lineman's Reference - URD iOS app has established itself as a seasoned player with proven staying power in the mobile app category. Over 1 year since launch, it has accumulated 65 reviews and built its current revenue stream. The app maintains a 4.5-star rating. This United States application.

## Briefing

Lineman's Reference - URD is an iOS app ($9.99) by Digital Apprentice LLC in the mobile app category. It holds a 4.5-star rating.

- A paid app priced at $9.99.
- Ships new versions about one a week.
- Latest version is 1.0.03, released March 15, 2025.
- 84% of ratings are five-star.
- Available in 1 language.
- Strongest in US, CA.
- Downloads at 193.1 MB and requires iOS 12.1+.
- Rated 9+.

## Specs

| Spec | Value |
| --- | --- |
| Version | 1.0.03 |
| Release status | Worldwide |
| Age rating | 9+ |
| Requires | iOS 12.1+ |
| Size | 193.1 MB |
| Languages | English |
| Price | $9.99 |
| First seen | November 2024 |
| Top markets | US, CA |
| Publisher country | US |
| Support | [Visit support](http://www.digitalapprentice.net) |

## What's new

| Version | Date |
| --- | --- |
| 1.0.03 | March 15, 2025 |
| 1.0.1 | December 4, 2024 |
| 1.0.0 | November 25, 2024 |

## Featured reviews

- **5★ · Gameplay · August 22, 2025** — I wish there were harder simulations. Including things like changing out three phase pads, single phase loops inside three phase loops, blown out elbows, bad bushings, and cubicles. I have found that I’ve done every quiz simulation there is. Cut cables in complicated loops that cross over each other would be a great example of a hard problem. Also if you could put the materials on the side of the transformers. It can be very hard to reach those at the bottom of the screen when using a phone with a case. Other than that this app is perfect for learning. I look forward to the update for secondaries and meter bases. I hope you include parallel services in meter bases!
- **5★ · Probably one of the most beneficial apps on my phone · January 11, 2026** — 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.
- **5★ · Great app!! Honest mistake on my end! · June 20, 2025** — Bought the app, went straight into cable isolation where “the shotgun stick wasn’t working”. Not knowing that if I were to have just went through the tutorial I would have saved a lot of time! I emailed the owner and he helped me out in seconds!!! 1 - PICK UP SHOTGUN STICK WITH ONE FINGER 2 - DRAG THE SHOTGUN STICK TO WHAT EVER YOU HAVE TO PICK UP AND KEEP YOUR FINGER ON THE SCREEN 3 - USE ANOTHER FINGER TO PICK UP THE ITEM

## About

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

## Questions about this app

### What are Lineman's Reference - URD iOS app's download statistics?

Lineman's Reference - URD iOS app is available. The app maintains a 4.5-star rating based on 65 user reviews, indicating strong user satisfaction in the mobile app market.

### Is Lineman's Reference - URD iOS app performing well in its category?

Lineman's Reference - URD iOS app competes actively in the mobile app category.

### Where can I download Lineman's Reference - URD iOS app?

You can download Lineman's Reference - URD iOS app from the App Store for iOS devices, requiring iOS 12.1 or later. The app provides its core features without requiring in-app purchases.

## Links

- [App Store page](https://apps.apple.com/app/id6478995455)
- [Digital Apprentice LLC on TrendApps](https://trendapps.dev/publisher/1565687382/)
- [Top Education apps on iOS](https://trendapps.dev/top-trending-apps/ios/education/)
- [App economics statistics](https://trendapps.dev/statistics/)

Source: https://trendapps.dev/app/ios/6478995455/ · Markdown: https://trendapps.dev/app/ios/6478995455/index.md · Methodology: https://trendapps.dev/methodology/