# IUOE Local 139 vs Operating Engineers 324

The clearest difference is rating: Operating Engineers 324 at 5.0 against IUOE Local 139's 4.6. On price, ratings volume, 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.

Operating Engineers 324 holds the better App Store score, 5.0 against 4.6. Both are backed by a comparable volume of ratings — 61 and 27 respectively.

IUOE Local 139 ships an update every 3 months, Operating Engineers 324 every 4 months. Both last shipped on November 3, 2026.

## The numbers

| Metric | IUOE Local 139 | Operating Engineers 324 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (61 ratings)](https://appshunter.io/ios/app/iuoe-local-139/id1502814621/reviews) | **[5.0 (27 ratings)](https://appshunter.io/ios/app/operating-engineers-324/id1644585043/reviews)** |
| Number of ratings | **61** | 27 |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 4 months |
| Monetization | Free | Free |
| Size | 117 MB | 115 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 17+ |
| Developer | [INTERNATIONAL UNION OF OPERATING ENGINEERS LOCAL 139](https://appshunter.io/developer/1502814620) | [OPERATING ENGINEERS LOCAL 324 BUILDING CORPORATION](https://appshunter.io/developer/1644585045) |

## What reviewers say

### IUOE Local 139

[App page](https://appshunter.io/ios/app/iuoe-local-139/id1502814621)

Stay informed with the latest news, upcoming events, and important announcements. Access union resources, pay membership dues, and purchase merchandise directly through the app. Receive important updates via push notifications to stay connected.

**Highlights:** News and upcoming events, Pay membership dues, Purchase union merchandise, Access union and member resources, Contact union representatives, Push notifications for updates

**Features:** Apple Wallet

**In-app purchases:** none


### Operating Engineers 324

[App page](https://appshunter.io/ios/app/operating-engineers-324/id1644585043)

Stay informed about the organization representing over 14,000 heavy equipment operators, technicians, and engineers in Michigan. This app provides news and updates on the organization and its members who contribute to major infrastructure projects across the state.

**Highlights:** Stay connected with the organization, Receive news and updates, Information on union members, Details on infrastructure projects, Updates on the organization's activities

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is IUOE Local 139 free?

IUOE Local 139 is free to download, with no in-app purchases.

### Is Operating Engineers 324 free?

Operating Engineers 324 is free to download, with no in-app purchases.

### Which has better reviews, IUOE Local 139 or Operating Engineers 324?

Operating Engineers 324 is rated higher. IUOE Local 139 averages 4.6 out of 5 from 61 ratings, while Operating Engineers 324 averages 5.0 from 27 ratings.

### Do IUOE Local 139 or Operating Engineers 324 have ads?

Neither IUOE Local 139 nor Operating Engineers 324 shows ads.

### Which is updated more often, IUOE Local 139 or Operating Engineers 324?

IUOE Local 139 ships an update every 3 months, and Operating Engineers 324 every 4 months. Most recently, IUOE Local 139 was updated on November 3, 2026 and Operating Engineers 324 on November 3, 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.*