# IUOE 18 vs Operating Engineers 324

The clearest difference is rating: Operating Engineers 324 at 5.0 against IUOE 18's 4.5. Operating Engineers 324 also leads on iOS requirement (12.0 vs 14.0). IUOE 18's advantage is update cadence (every 6 weeks vs every 4 months) and ratings volume (314 vs 27). On price, ads, in-app purchases and monetization model 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 4.5. That said, the two scores are not equally well evidenced: IUOE 18 has 314 ratings behind it against 27, so its average is the more settled of the two.

IUOE 18 ships an update every 6 weeks, Operating Engineers 324 every 4 months. The most recent releases landed on October 24, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | IUOE 18 | Operating Engineers 324 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (314 ratings)](https://appshunter.io/ios/app/iuoe-18/id1485734615/reviews) | **[5.0 (27 ratings)](https://appshunter.io/ios/app/operating-engineers-324/id1644585043/reviews)** |
| Number of ratings | **314** | 27 |
| Positive reviews | 40.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 4 months |
| Monetization | Free | Free |
| Size | 112 MB | 115 MB |
| Requires iOS | 14.0 | **12.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 17+ |
| Developer | [LOCAL 18 I.U.O.E.](https://appshunter.io/developer/1485734614) | [OPERATING ENGINEERS LOCAL 324 BUILDING CORPORATION](https://appshunter.io/developer/1644585045) |

## What reviewers say

### IUOE 18

[App page](https://appshunter.io/ios/app/iuoe-18/id1485734615)

This app provides members with essential union information, including local details, event updates, and important announcements. It also offers access to mental health resources and political information. Receive timely alerts directly to your device.

**Highlights:** Local union information, Announcements and events, Push notifications for updates, Mental health resources, Political initiative information

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none

**What reviewers like**

- 👍 Easy and quick at meetings
- 👍 Convenient for paying dues
- 👍 Access to contracts, events, and meetings
- 👍 Great tool for staying connected
- 👍 Handy for staying up to date

**What reviewers complain about**

- 🐛 Frequent password changes
- 🐛 Inaccessible viewing areas
- 🐛 Inaccurate or non-functional features
- 🐛 Dues payment button missing
- 🐛 Difficult to navigate

**Reported bugs**

- Areas cannot be viewed
- Dues payment button is gone
- App updates do not show immediately

**Requested features**

- Add union card to the app
- View name on out of work list
- Live streaming of union meetings
- Information on healthcare at retirement


### 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 18 free?

IUOE 18 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 18 or Operating Engineers 324?

Operating Engineers 324 is rated higher. IUOE 18 averages 4.5 out of 5 from 314 ratings, while Operating Engineers 324 averages 5.0 from 27 ratings.

### Do IUOE 18 or Operating Engineers 324 have ads?

Neither IUOE 18 nor Operating Engineers 324 shows ads.

### Which is updated more often, IUOE 18 or Operating Engineers 324?

IUOE 18 ships an update every 6 weeks, and Operating Engineers 324 every 4 months. Most recently, IUOE 18 was updated on October 24, 2026 and Operating Engineers 324 on October 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.*