# IUOE 181 vs Ironworkers 135

The clearest difference is rating: Ironworkers 135 at 5.0 against IUOE 181's 4.2. Ironworkers 135 also leads on iOS requirement (12.0 vs 15.0). IUOE 181's advantage is ratings volume (31 vs 1). On price, review sentiment, update cadence and ads there is nothing between them.

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

Ironworkers 135 holds the better App Store score, 5.0 against 4.2. That said, the two scores are not equally well evidenced: IUOE 181 has 31 ratings behind it against 1, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

IUOE 181 ships an update every 5 months, Ironworkers 135 every 3 months. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | IUOE 181 | Ironworkers 135 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.2 (31 ratings)](https://appshunter.io/ios/app/iuoe-181/id1479325555/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/ironworkers-135/id6474883093/reviews)** |
| Number of ratings | **31** | 1 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 3 months** |
| Monetization | Free | Free |
| Size | 106 MB | 121 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 17+ |
| Developer | [International Union of Operating Engineers Local](https://appshunter.io/developer/1479325554) | [International Afl-cio Iron Workers Local 135](https://appshunter.io/developer/1722675776) |

## What reviewers say

### IUOE 181

[App page](https://appshunter.io/ios/app/iuoe-181/id1479325555)

This app provides union members with news, updates, and information about their benefits and industry contracts. It serves as a tool to understand their role in the union and access important resources.

**Highlights:** General news and updates, Industry and contract updates, Call board integration, Contact information, Report violations, Political action and organizing

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

**In-app purchases:** none


### Ironworkers 135

[App page](https://appshunter.io/ios/app/ironworkers-135/id6474883093)

This app serves as a resource for members of Ironworkers 135 to access union news, industry updates, and important contact information. It helps members understand their benefits and role within the union.

**Highlights:** General news and updates, Industry and contract specific information, Call board integration, Contact information, Report violations, Political action and organizing tools

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is IUOE 181 free?

IUOE 181 is free to download, with no in-app purchases.

### Is Ironworkers 135 free?

Ironworkers 135 is free to download, with no in-app purchases.

### Which has better reviews, IUOE 181 or Ironworkers 135?

Ironworkers 135 is rated higher. IUOE 181 averages 4.2 out of 5 from 31 ratings, while Ironworkers 135 averages 5.0 from 1 ratings.

### Do IUOE 181 or Ironworkers 135 have ads?

Neither IUOE 181 nor Ironworkers 135 shows ads.

### Which is updated more often, IUOE 181 or Ironworkers 135?

IUOE 181 ships an update every 5 months, and Ironworkers 135 every 3 months. Most recently, IUOE 181 was updated on November 3, 2026 and Ironworkers 135 on November 4, 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.*