Lineman's Reference - XFMR LAB

Name: Lineman's Reference - XFMR LAB
Price: 19.99 USD
Rating: 4.5 (235 reviews)
Author: Digital Apprentice LLC

By: Digital Apprentice LLC App

Transformer Training Simulator

Overview

Version:

2.0.5

Last updated: 2026-08-09

Features & Capabilities

This fully functional transformer lab simulator was designed by a journeyman lineman for linemen and apprentices. Use it to study transformer connections, and when fuses are closed you can test your wiring with a voltmeter, ohmmeter, and rotation meter. Abnormal voltages and cutout fuses exploding can occur with improper connections. In the labs you can inspect the transformers' nameplates and secondary coils, access quick reference diagrams, and review basic transformer reading material. The Quiz mode lets you test your knowledge, and the Company Customized Experience lets a power company tailor the app to their specs.

Current Labs in this app include: Single Phase (Single Bushing Topside, Dual Bushing Topside); Three Phase (Delta-Delta Closed, Delta-Wye Closed, Wye-Wye Closed, Delta-Delta Open, Wye-Delta Open); Misc (Paralleling, 4th Cutout, Troubleshooting, Tutorial); and Advanced (Straight 480, 240/480, 277/480, Corner Grounded 240/480, Wye-Wye 5 Wire 120/240 & 120/208). The built-in Quiz and Advanced Quiz modes challenge you with job-site scenarios to verify and expand your transformer wiring knowledge.

User Growth & Download Statistics

App Education

By:

Digital Apprentice LLC

Rating:

4.50

(235) 0.10

Version:

2.0.5 Last updated: 2026-08-09

Version code:

889494640

Creation date:

2021-09-12

Compatible devices:

Size:

64.67MB

Price:

19.99

URLs:

Website ,Privacy policy

Full description:

Source:

Apple Apps Store

Data ingested on:

2026-08-11

Compare stats and ranking:

Ranking

# 99,300 ▲ 3,241

Other rankings

#9 in Education (Paid) ▼ 2

Other platforms

Lineman's Reference - XFMR Lab (v1.3.00)

6,164 4.49

(41)

For Developers

Monetize with App Pass Boost with Extension Booster

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-xfmr-lab/id1583878194

Website:

https://www.linemanapps.com

User Reviews

Users praise the app as a strong learning tool with clear diagrams, but several recurring issues hamper use: accuracy/validation bugs, limited bank-building options (no subtractive/additive, no broader voltages), insufficient labs, and UI glitches. Vector charts and advanced features are often requested. If these bugs are fixed and expansions added, it could become a top training tool for linemen.

Pros

Excellent learning tool for understanding transformer bank configurations; apprentices find it very helpful.
Clear bank diagrams and set diagrams that aid learning.
Helps with memorization and practical understanding and builds confidence in real-world bank building.
Worth the price; many users say it is well worth the $10.

Cons

Inaccurate or inconsistent validation; correct wiring sometimes marked wrong, especially for delta/wye configurations.
Limited bank-building options; cannot create subtractive/additive banks, select primary voltages, or access 277/480; no custom banks.
Not enough labs/scenarios; requests for more labs and advanced scenarios; limited paralleling options.
UI/UX issues and bugs such as non-working voltmeter, layout problems, and orientation requirements; difficulty reviewing during quizzes.