IUOE 66 vs UWUA 433
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
IUOE 66
This app provides union members with access to news, updates on industry and contract specifics, and event information. It also includes features for reporting violations and accessing contact details. The tool aims to help members understand their union role and available benefits.
- General news and updates
- Industry and contract updates
- Call board integration
- Contact information
- Report violations
- Political action and organizing
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The IUOE 66 mobile app is designed to educate, engage and empower our Members. This app is to be used as a tool to better understand the benefits available to our Members working in the Industry. This app is only available to IUOE 66 Members. Items Included: • General News & Updates from IUOE 66 • Industry & Contract Specific Updates & Events • Call Board Integration • Contact Information • Report Violations • Political Action & Organizing & more! We are proud of our IUOE 66 Members & intend for this tool to help our Members better understand their role in their Union and the benefits available to them.
UWUA 433
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UWUA 433 is the mobile application of the Utility Workers Union Of America, Local 433. It provides UWUA 433 members with a tool to connect with their union and stay informed about union activities and updates. Members can access essential resources, such as contracts and important documents (if available), related to their rights in the workplace. The app also keeps members updated on major events and provides useful information about their rights and responsibilities as union members.
Screenshots
Verdict
The clearest difference is update cadence: UWUA 433 at every 8 days against IUOE 66's every 2 months. IUOE 66's advantage is iOS requirement (12.0 vs 16.4). On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
IUOE 66 ships an update every 2 months, UWUA 433 every 8 days. The most recent releases landed on November 1, 2026 and November 4, 2026 respectively.
| Parameter | IUOE 66 | UWUA 433 |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (83 ratings) — better | — |
| Positive reviews | 25.0% of reviews | — |
| Number of ratings | 83 — better | — |
| Update frequency | Every 2 months | Every 8 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 12.0 — better | 16.4 |
| Further details — not scored | ||
| Size | 89 MB | 49 MB |
| Age rating | 17+ | 4+ |
| Developer | International Union of Operating Engrs (MD) | Prometheus Labor Communications, Inc. |
In-app purchases
IUOE 66
No in-app purchases
UWUA 433
No in-app purchases
Questions
Is IUOE 66 free?
Is UWUA 433 free?
Do IUOE 66 or UWUA 433 have ads?
Which is updated more often, IUOE 66 or UWUA 433?
Other comparisons
