# Interplay Learning vs Lineman's Reference

The clearest difference is price: Interplay Learning at Free against Lineman's Reference's $19.99. Lineman's Reference's advantage is rating (4.6 vs 3.9) and review sentiment (62% vs 27%). On update cadence, ads, device support and iOS requirement there is nothing between them.

Interplay Learning is free to download; Lineman's Reference costs $19.99 up front. Interplay Learning sells 1 in-app purchase, starting at $54.00 per month. Lineman's Reference asks for nothing beyond the download.

Lineman's Reference holds the better App Store score, 4.6 against 3.9. That said, the two scores are not equally well evidenced: Lineman's Reference has 307 ratings behind it against 48, so its average is the more settled of the two. Written reviews point the same way: 27% of Interplay Learning's written reviews are positive against 62% of Lineman's Reference's.

Interplay Learning ships an update every 2 months, Lineman's Reference every 4 weeks. The most recent releases landed on September 9, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | Interplay Learning | Lineman's Reference |
| --- | --- | --- |
| Price | **Free** | $19.99 |
| Rating | [3.9 (48 ratings)](https://appshunter.io/ios/app/interplay-learning/id1465704946/reviews) | **[4.6 (307 ratings)](https://appshunter.io/ios/app/linemans-reference-xfmr-lab/id1583878194/reviews)** |
| Number of ratings | 48 | **307** |
| Positive reviews | 26.7% of reviews | **62.2% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 4 weeks** |
| Monetization | Subscription | **Free** |
| Best chart rank | — | **#5** |
| Size | 135 MB | 65 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Interplay Learning Inc.](https://appshunter.io/developer/661131444) | [Digital Apprentice LLC](https://appshunter.io/developer/1565687382) |

## What reviewers say

### Interplay Learning

[App page](https://appshunter.io/ios/app/interplay-learning/id1465704946)

This platform offers subscription-based training for skilled trades, creating job-ready workers and upskilling existing ones. Access hundreds of hours of expert-led content in HVAC, plumbing, electrical, and more, with on-demand assessments to track progress.

**Highlights:** Expert-led training content, On-demand assessments, Certification exam prep, Bite-sized training videos, Progress tracking, Anytime, anywhere access

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Individual Monthly | $54.00 | per month |


### Lineman's Reference

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

**Currently charting:** #5 Top Paid · Education, #149 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 Interplay Learning free?

Interplay Learning is free to download, with in-app purchases available.

### Is Lineman's Reference free?

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

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

Lineman's Reference is rated higher. Interplay Learning averages 3.9 out of 5 from 48 ratings, while Lineman's Reference averages 4.6 from 307 ratings.

### Do Interplay Learning or Lineman's Reference have ads?

Neither Interplay Learning nor Lineman's Reference shows ads.

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

Interplay Learning ships an update every 2 months, and Lineman's Reference every 4 weeks. Most recently, Interplay Learning was updated on September 9, 2026 and Lineman's Reference on September 22, 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.*