# IUOE 103 vs Operating Engineers 324

The clearest difference is rating: Operating Engineers 324 at 5.0 against IUOE 103's 4.7. IUOE 103's advantage is ratings volume (82 vs 27). 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.

Operating Engineers 324 holds the better App Store score, 5.0 against 4.7. Both are backed by a comparable volume of ratings — 82 and 27 respectively.

Both ship on a similar rhythm, roughly every 4 months. The most recent releases landed on October 8, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | IUOE 103 | Operating Engineers 324 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (82 ratings)](https://appshunter.io/ios/app/iuoe-103/id1479295802/reviews) | **[5.0 (27 ratings)](https://appshunter.io/ios/app/operating-engineers-324/id1644585043/reviews)** |
| Number of ratings | **82** | 27 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | Every 4 months |
| Monetization | Free | Free |
| Size | 119 MB | 115 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 17+ |
| Developer | [INTERNATIONAL UNION OPERATING ENGINEERS LOCAL 103](https://appshunter.io/developer/1479295801) | [OPERATING ENGINEERS LOCAL 324 BUILDING CORPORATION](https://appshunter.io/developer/1644585045) |

## What reviewers say

### IUOE 103

[App page](https://appshunter.io/ios/app/iuoe-103/id1479295802)

This app provides union members with essential information about their benefits, industry updates, and union activities. It serves as a tool for members to understand their role and available resources.

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

**Features:** macOS Compatibility, 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 103 free?

IUOE 103 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 103 or Operating Engineers 324?

Operating Engineers 324 is rated higher. IUOE 103 averages 4.7 out of 5 from 82 ratings, while Operating Engineers 324 averages 5.0 from 27 ratings.

### Do IUOE 103 or Operating Engineers 324 have ads?

Neither IUOE 103 nor Operating Engineers 324 shows ads.

### Which is updated more often, IUOE 103 or Operating Engineers 324?

IUOE 103 ships an update every 4 months, and Operating Engineers 324 every 4 months. Most recently, IUOE 103 was updated on October 8, 2026 and Operating Engineers 324 on October 14, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*