# PowerkVA vs Lineman's Reference

The clearest difference is price: PowerkVA at $1.99 against Lineman's Reference's $19.99. PowerkVA also leads on review sentiment (100% vs 62%) and iOS requirement (14.1 vs 16.0). Lineman's Reference's advantage is update cadence (monthly vs every 94 months) and ratings volume (407 vs 10). On rating, ads, in-app purchases and device support there is nothing between them.

PowerkVA costs $1.99 and Lineman's Reference $19.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 4.6 for PowerkVA against 4.7 for Lineman's Reference. That said, the two scores are not equally well evidenced: Lineman's Reference has 407 ratings behind it against 10, so its average is the more settled of the two. Written reviews are what separate them: 100% of PowerkVA's written reviews are positive against 62% of Lineman's Reference's.

PowerkVA ships an update every 94 months, Lineman's Reference monthly. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | PowerkVA | Lineman's Reference |
| --- | --- | --- |
| Price | **$1.99** | $19.99 |
| Rating | [4.6 (10 ratings)](https://appshunter.io/ios/app/powerkva/id778275984/reviews) | **[4.7 (407 ratings)](https://appshunter.io/ios/app/linemans-reference-xfmr-lab/id1583878194/reviews)** |
| Number of ratings | 10 | **407** |
| Positive reviews | **100.0% of reviews** | 62.2% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 94 months | **Monthly** |
| Monetization | Paid | **Free** |
| Best chart rank | — | **#10** |
| Size | 3 MB | 65 MB |
| Requires iOS | **14.1** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Manuel Olivera](https://appshunter.io/developer/778275987) | [Digital Apprentice LLC](https://appshunter.io/developer/1565687382) |

## What reviewers say

### PowerkVA

[App page](https://appshunter.io/ios/app/powerkva/id778275984)

This app simplifies electrical transformer calculations using formulas and drawings. It offers standard transformer sizes and voltages with an intuitive interface for easy value selection.

**Highlights:** Electrical transformer computation, Formulas and drawings, Standard transformer sizes, Standard voltages, Simple value selection

**Features:** macOS Compatibility

**In-app purchases:** none


### Lineman's Reference

[App page](https://appshunter.io/ios/app/linemans-reference-xfmr-lab/id1583878194)

**Currently charting:** #10 Top Paid · Education, #106 Top Paid (US App Store)

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:** macOS Compatibility, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Great for learning
- 👍 Helpful for apprentices
- 👍 Useful practice tool
- 👍 Good concept
- 👍 Excellent labs and sandbox

**What reviewers complain about**

- 🐛 Too many bugs
- 🐛 App is clunky
- 🐛 Wiring issues
- 🐛 Incorrect diagrams
- 🐛 Incorrect quiz answers

**Reported bugs**

- Tutorial loop
- Lines not connecting
- Cannot wire up all banks
- WYE Delta is wrong
- Cannot bus secondary x2 to x2 bushing for delta secondaries

**Requested features**

- Ability to build own banks
- Add tap changer settings
- Add vector charts
- Add more labs with different scenarios
- Create your own bank option


## Frequently asked questions

### Is PowerkVA free?

PowerkVA costs $1.99, with no in-app purchases.

### Is Lineman's Reference free?

Lineman's Reference costs $19.99, with no in-app purchases.

### Which has better reviews, PowerkVA or Lineman's Reference?

Lineman's Reference is rated higher. PowerkVA averages 4.6 out of 5 from 10 ratings, while Lineman's Reference averages 4.7 from 407 ratings.

### Do PowerkVA or Lineman's Reference have ads?

Neither PowerkVA nor Lineman's Reference shows ads.

### Which is updated more often, PowerkVA or Lineman's Reference?

PowerkVA ships an update every 94 months, and Lineman's Reference monthly. Most recently, PowerkVA was updated on October 23, 2026 and Lineman's Reference on October 24, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*