# IUOE 520 vs Ironworkers 751

The clearest difference is ratings volume: IUOE 520 at 90 against Ironworkers 751's 1. Ironworkers 751's advantage is rating (5.0 vs 4.7) and iOS requirement (12.0 vs 15.0). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Ironworkers 751 holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: IUOE 520 has 90 ratings behind it against 1, so its average is the more settled of the two.

IUOE 520 ships an update every 5 months, Ironworkers 751 every 3 months. The most recent releases landed on October 25, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | IUOE 520 | Ironworkers 751 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (90 ratings)](https://appshunter.io/ios/app/iuoe-520/id1488217530/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/ironworkers-751/id1665610180/reviews)** |
| Number of ratings | **90** | 1 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 3 months** |
| Monetization | Free | Free |
| Size | 108 MB | 112 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Operating Engineers Local 520](https://appshunter.io/developer/1488217529) | [Ironworkers Local 751](https://appshunter.io/developer/1665610182) |

## What reviewers say

### IUOE 520

[App page](https://appshunter.io/ios/app/iuoe-520/id1488217530)

This app provides union members with easy access to important information about their benefits, news, and contract updates. Members can also find details on training, discounts, and provide feedback directly to the union.

**Highlights:** General news and updates, Contract-specific information, Fringe benefits details, Training and course listings, Union member discounts, Membership feedback surveys

**Features:** macOS Compatibility, Apple Wallet, Vision Pro support

**In-app purchases:** none


### Ironworkers 751

[App page](https://appshunter.io/ios/app/ironworkers-751/id1665610180)

This app provides exclusive access to news, updates, and important information for Ironworkers 751 members. It serves as a tool to understand available benefits, industry contracts, and union involvement.

**Highlights:** General News & Updates, Industry & Contract Updates, Call Board Integration, Contact Information, Report Violations, Political Action & Organizing

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is IUOE 520 free?

IUOE 520 is free to download, with no in-app purchases.

### Is Ironworkers 751 free?

Ironworkers 751 is free to download, with no in-app purchases.

### Which has better reviews, IUOE 520 or Ironworkers 751?

Ironworkers 751 is rated higher. IUOE 520 averages 4.7 out of 5 from 90 ratings, while Ironworkers 751 averages 5.0 from 1 ratings.

### Do IUOE 520 or Ironworkers 751 have ads?

Neither IUOE 520 nor Ironworkers 751 shows ads.

### Which is updated more often, IUOE 520 or Ironworkers 751?

IUOE 520 ships an update every 5 months, and Ironworkers 751 every 3 months. Most recently, IUOE 520 was updated on October 25, 2026 and Ironworkers 751 on October 6, 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.*