# Lineman's Reference vs OSHA Cloud

The clearest difference is price: OSHA Cloud at Free against Lineman's Reference's $19.99. OSHA Cloud also leads on review sentiment (100% vs 62%) and rating (5.0 vs 4.6). Lineman's Reference's advantage is in-app purchases (none vs 2) and ratings volume (307 vs 1). On update cadence, ads, device support and iOS requirement there is nothing between them.

OSHA Cloud is free to download; Lineman's Reference costs $19.99 up front. OSHA Cloud sells 2 one-off in-app purchases. Lineman's Reference asks for nothing beyond the download.

OSHA Cloud holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Lineman's Reference has 307 ratings behind it against 1, 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 100% of OSHA Cloud's.

Both ship on a similar rhythm, roughly every 4 weeks. The most recent releases landed on September 27, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | Lineman's Reference | OSHA Cloud |
| --- | --- | --- |
| Price | $19.99 | **Free** |
| Rating | [4.6 (307 ratings)](https://appshunter.io/ios/app/linemans-reference-xfmr-lab/id1583878194/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/osha-cloud/id6761623340/reviews)** |
| Number of ratings | **307** | 1 |
| Positive reviews | 62.2% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 weeks | Every 4 weeks |
| Monetization | **Free** | Free with in-app purchases |
| Best chart rank | **#13** | — |
| Size | 65 MB | 1 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Digital Apprentice LLC](https://appshunter.io/developer/1565687382) | [Black Bridge](https://appshunter.io/developer/1889498958) |

## What reviewers say

### Lineman's Reference

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

**Currently charting:** #13 Top Paid · Education (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


### OSHA Cloud

[App page](https://appshunter.io/ios/app/osha-cloud/id6761623340)

This platform offers authorized OSHA safety training for construction professionals and companies. It provides structured, compliant courses designed for jobsite requirements. Upon completion, users receive a physical OSHA completion card.

**Highlights:** Authorized OSHA training, Construction safety focus, Structured, compliant courses, Physical completion card, For individuals and companies

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| OSHA 10 Construction Training | $59.99 | one-time |
| OSHA 30 Construction | $129.99 | one-time |


## Frequently asked questions

### Is Lineman's Reference free?

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

### Is OSHA Cloud free?

OSHA Cloud is free to download, with in-app purchases available.

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

OSHA Cloud is rated higher. Lineman's Reference averages 4.6 out of 5 from 307 ratings, while OSHA Cloud averages 5.0 from 1 ratings.

### Do Lineman's Reference or OSHA Cloud have ads?

Neither Lineman's Reference nor OSHA Cloud shows ads.

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

Lineman's Reference ships an update every 4 weeks, and OSHA Cloud every 4 weeks. Most recently, Lineman's Reference was updated on September 27, 2026 and OSHA Cloud on September 14, 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.*