Comparison

Lineman's Reference vs CAST Practice Test 2026

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Lineman's Reference

This interactive simulator allows users to study and learn transformer connections. Test your wiring with various meters, and experience consequences of improper connections. Includes reference diagrams, informational material, and a quiz mode to test knowledge.

Highlights
  • Transformer connection simulation
  • Volt, ohm, and rotation meters
  • Abnormal voltage and fuse explosion simulation
  • Transformer nameplate and coil inspection
  • Quick reference diagrams
  • Informational reading material
  • Quiz and advanced quiz modes
Features
Read full description

Learn it. Wire it. Energize it. Check your work. Built by a working journeyman lineman for linemen and their apprentices. The XFMR Lab simulates distribution transformer banks driven by your own wiring — the metering, fusing, and faulting all behave the way you'd expect in the field. NEW IN 2.0 — BUILT-IN TRANSFORMER TRAINING (Replacing XFMR INFO) Six guided lessons take you from "what's a transformer?" to wiring a 3-pot bank: • Start Here — What is a Transformer? • Dual H Bushings — The Two Wirings & the Nameplate • The Tap Changer — One Pot, Multiple System Voltages • Three-Phase — The Three Phases and How They're Related • Bank Identification — Delta or Wye, Open or Closed • Your First Bank: Delta-Wye Closed (120/208) • More lessons on the way! Work the lessons in order, or jump straight to the labs. ALSO NEW IN 2.0 • The Sandbox (Beta) — wire anything from scratch in a COMPLETELY-customizable lab, with live, vector-based voltage and fault logic baked in. • Death Traps — scenario-based transformer traps linemen run into — and how to navigate them safely. • A brand-new look across every lab — new graphics, sharper, faster, & easier to read in the field. • Voltmeter you can now drag with two fingers; readings update as the leads move. • Parallel the secondary coils by hand in wye secondary labs • Stats that track lab completions, quiz scoring and for-fun stuff like the number of fuses you've blown. • User Customizations - the user can now alter the spec of their labs; from grounding to parallel coil cutover-direction, requiring the 4th cutout, tap changer implementation and more. • 2.0 is FREE for everyone who already owns XFMR Lab — thank you for years of feedback and encouragement. WHAT YOU GET Single Phase — Single Bushing · Dual Bushing Three Phase (closed) — Delta-Delta · Delta-Wye · Wye-Delta · Wye-Wye Three Phase (open) — Open Delta-Delta · Open Wye-Delta Misc — Paralleling · 4th Cutout · Death Traps (6 Scenarios) Advanced — Straight 480 · 240/480 · 277/480 · Corner-Grounded 240/480 · Wye-Wye 5-Wire (120/240 + 120/208) - all now able to be wired up Wye AND Delta on the topside The Sandbox (Beta) EVERY FUTURE UPDATE IS FREE - THE APP IS A ONE-TIME PURCHASE. I'm always working on new updates. TOOLS & REFERENCE • Volt, ohm and rotation meters with real behavior • Nameplate, secondary coil and tap changer animations • Reference diagrams for every standard bank Learning Mode walks apprentices through every wrong-connection check. Journeymen and experienced users can keep this turned off if they'd like. QUIZZES • Classic Quiz — Select each lab you want in your quiz - with graded scoring across each lab. • Advanced Quiz — You're provided with the job-site info and need to pick the right nameplate and coil setup, then wire it. • Bank ID - A beginner's quiz tied into the new XFMR Training lesson plan. The user is provided with different primary and secondary wirings and must correctly identify them. Used by 30,000+ linemen since 2021. Questions? Suggestions? Reach me at info@digitalapprentice.net

About

CAST Practice Test 2026

Prepare for the CAST test with comprehensive practice questions and mock exams. This app offers topic-based practice, instant feedback, and a personalized study plan to help you master the required knowledge and achieve certification. An AI study assistant provides real-time support and guidance.

Highlights
  • Topic-based practice questions
  • Versatile practice modes
  • Full mock tests
  • Instant feedback on answers
  • Personalized study plans
  • 24/7 AI study assistant
Features
Read full description

Our CAST Practice Test 2026 is specifically designed to assist users in successfully passing the CAST Test. With a focus on closely aligning with the actual exam objectives, our comprehensive CAST test prep ensures that you can identify areas for improvement and optimize your study time for maximum effectiveness in mastering the required knowledge. With an impressive 90% pass rate, our CAST prep questions have proven to be highly effective in helping users succeed. In fact, it is 90% more effective than traditional handbooks, providing a reliable and efficient method for users to achieve CAST certification. Our CAST Practice test questions are categorized into various topics: • Graphic Arithmetic • Mechanical Concepts • Reading Comprehension • Mathematical Usage Benefits you can gain from our CAST Prep 2026: - Topic-based practice: Target specific areas, reinforce learning and improve retention - Versatile practice modes: Engage with the study material in various ways, actively participate in the learning process rather than passively consuming information - Mock tests: Become familiar with the exam environment, develop and refine test-taking strategies - Instant feedback: Learn from mistakes, deepen understanding of the concepts, and apply knowledge more effectively - Personalized study plan: Get a roadmap for your learning journey and stay motivated to achieve your study goals - Passing Possibility: Obtain valuable insights that gauge your readiness to tackle the exam - Mentora – Your 24/7 AI Study Assistant: Mentora provides real-time support, personalized guidance, and clear explanations to help you learn faster and smarter. Master key concepts, track your progress, and boost your confidence – anytime, anywhere. Get ahead in the world of CAST testing. Download our CAST Practice Test app and start practicing today! Note: CAST Practice Test 2026 is an independent app and is not affiliated with any government entities. ======================= ABC Elearning Pro subscription: - ABC Elearning Pro includes full access to the specified course for the duration of the subscription period. - All prices are subject to change without notification. Promotion prices and limited-time opportunities may be available for qualifying purchases made during the promotional period. We are unable to offer price protection, refunds or retroactive discounts for previous purchases in the event that we offer a promotional offering or price reduction. - Payment is charged through your iTunes account at confirmation of purchase. - Your iTunes account will be automatically renewed and charged for renewal unless turned off in iTunes Account Settings at least 24 hours before the current subscription period ends (including the free trial period). The unused portion of the free trial is forfeited after purchase. - Your subscriptions may be managed by the user and auto-renewal may be turned off in the user’s iTunes Account Settings after purchase. However, you are not able to cancel the current subscription period during its active subscription period. Our Terms of Service and Privacy Policy: Privacy Policy: https://passemall.com/privacy Terms of Use: https://abc-elearning-app.github.io/terms-of-use Contact us: support@abc-elearning.org

Screenshots

Lineman's Reference4 screens
CAST Practice Test 20264 screens

Verdict

The call

The clearest difference is price: CAST Practice Test 2026 at Free against Lineman's Reference's $19.99. CAST Practice Test 2026 also leads on rating (4.8 vs 4.6) and review sentiment (75% vs 62%). Lineman's Reference's advantage is in-app purchases (none vs 4) and ads (none vs shown). On device support and iOS requirement there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

CAST Practice Test 2026 is free to download; Lineman's Reference costs $19.99 up front. CAST Practice Test 2026 sells 4 in-app purchases, starting at $6.99 per 7 days. Lineman's Reference asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

CAST Practice Test 2026 holds the better App Store score, 4.8 against 4.6. That said, the two scores are not equally well evidenced: Lineman's Reference has 307 ratings behind it against 40, so its average is the more settled of the two. Written reviews point the same way: 62% of Lineman's Reference's written reviews are positive against 75% of CAST Practice Test 2026's.

UpkeepUpdate frequency

Lineman's Reference ships an update every 4 weeks, CAST Practice Test 2026 every 3 months. The most recent releases landed on September 22, 2026 and September 13, 2026 respectively.

Scorecard9 real differences · 2 level
Lineman's Reference versus CAST Practice Test 2026: the parameters behind the verdict, then further details
ParameterLineman's ReferenceCAST Practice Test 2026
Price$19.99Free — better
Rating4.6 (307 ratings)4.8 (40 ratings) — better
Positive reviews62.2% of reviews75.0% of reviews — better
Number of ratings307 — better40
Update frequencyEvery 4 weeks — betterEvery 3 months
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
Best chart rank#5 — better—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.015.0 — better
Further details — not scored
Size65 MB91 MB
Age rating4+4+
DeveloperDigital Apprentice LLCEASY PASS COMPANY LIMITED

Customer experience

Lineman's Reference

All ratings307 ratings
Positive89.9%
Neutral4.2%
Negative5.9%
Written reviews45 reviews
Positive62.2%
Neutral22.2%
Negative15.6%

CAST Practice Test 2026

All ratings36 ratings
Positive94.4%
Neutral2.8%
Negative2.8%
Written reviews4 reviews
Positive75.0%
Neutral25.0%
Negative0.0%

Bugs and requests

Lineman's Reference

Reported bugs

33 issues
  • Tutorial loop
  • Lines not connecting
  • Cannot wire up all banks
  • WYE Delta is wrong
  • Cannot bus secondary x2 to x2 bushing for delta secondaries
Show 28 more
  • Cannot select subtractive transformers
  • Wiring on X bushings not to exact phase
  • H2 to neutral connection issues
  • WYE Delta bank gives wrong voltage read
  • Fuse blows when attaching case grounds in delta secondary
  • Wrong wiring in diagram for 277/480 Wye/Wye bank
  • HV on transformer name plate is wrong
  • Shows wrong connection with right hook up
  • Paralleling cans connection issue
  • Voltmeter does not work
  • Cannot drop leads to voltmeter on bottom two phases
  • No option to select transformers
  • No option for primary voltage
  • No 277/480 option
  • No additive/subtractive options
  • Cannot pick secondary and primary side voltages
  • App tells user bank is wrong when it's correct
  • App incorrectly identifies bank type
  • Cannot put voltmeter on C phase secondary leads in horizontal screen
  • Cannot create 277/480 and straight 480 banks
  • Cannot manually parallel secondary windings
  • Lines too close to bottom of screen
  • Cannot look back at bank during quiz
  • High side H2 tied to ground in WYE delta
  • Only allows 120/240 or 120/208 hookups
  • Voltmeter not reading correctly when paralleling
  • App says something is wrong but doesn't specify correction
  • App keeps blowing doors on a correct connection

Requested features

23 requests
  • Ability to build own banks
  • Add tap changer settings
  • Add vector charts
  • Add more labs with different scenarios
  • Create your own bank option
Show 18 more
  • Add a WYE bank that stays in series
  • Add hints button
  • Add power banks
  • Add single bushing pots
  • Add 480 banks
  • Include transformers of different polarities
  • Add 4th cutout to WYE delta banks
  • Add additive and subtractive transformers
  • Select transformers from a list
  • Tie three phase secondary legs on open secondary lines
  • Add lighter bank category
  • Expand into metering
  • Add open delta WYE bank
  • Practice drawing vectors
  • See vectors for transformers
  • Ability to cut over pots
  • Add 240/480/277 and 277/480 options
  • More in-depth internals

CAST Practice Test 2026

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Lineman's Reference

No in-app purchases

4 purchases

CAST Practice Test 2026

Subscriptions4
  • CAST Subscription Weekly$6.997 Days
  • CAST Subscription Monthly3 Days trial$19.991 Month
  • CAST Quarterly Subscription3 Days trial$39.993 Months
Show 1 more
  • CAST Subscription Yearly3 Days trial$69.991 Year

Questions

Is Lineman's Reference free?
Lineman's Reference costs $19.99, with no in-app purchases.
Is CAST Practice Test 2026 free?
CAST Practice Test 2026 is free to download, with in-app purchases available.
Which has better reviews, Lineman's Reference or CAST Practice Test 2026?
CAST Practice Test 2026 is rated higher. Lineman's Reference averages 4.6 out of 5 from 307 ratings, while CAST Practice Test 2026 averages 4.8 from 40 ratings.
Do Lineman's Reference or CAST Practice Test 2026 have ads?
CAST Practice Test 2026 shows ads; Lineman's Reference does not.
Which is updated more often, Lineman's Reference or CAST Practice Test 2026?
Lineman's Reference ships an update every 4 weeks, and CAST Practice Test 2026 every 3 months. Most recently, Lineman's Reference was updated on September 22, 2026 and CAST Practice Test 2026 on September 13, 2026.

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