# Heating & Ventilating Review vs IRONWORKERS 229

The clearest difference is update cadence: IRONWORKERS 229 at every 3 months against Heating & Ventilating Review's every 8 months. IRONWORKERS 229 also leads on iOS requirement (12.0 vs 16.0). On price, ads, in-app purchases and device support there is nothing between them.

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

Heating & Ventilating Review ships an update every 8 months, IRONWORKERS 229 every 3 months. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Heating & Ventilating Review | IRONWORKERS 229 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.4 (27 ratings)](https://appshunter.io/ios/app/ironworkers-229/id1577994538/reviews)** |
| Number of ratings | — | **27** |
| Positive reviews | — | 66.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 3 months** |
| Monetization | — | Free |
| Size | 21 MB | 118 MB |
| Requires iOS | 16.0 | **12.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Datateam Business Media Ltd](https://appshunter.io/developer/531755760) | [IRONWORKERS INCORPORATED](https://appshunter.io/developer/1562492258) |

## What reviewers say

### Heating & Ventilating Review

[App page](https://appshunter.io/ios/app/heating-and-ventilating-review/id985232669)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### IRONWORKERS 229

[App page](https://appshunter.io/ios/app/ironworkers-229/id1577994538)

Stay informed about union news, local events, and political initiatives. Access mental health resources and receive important alerts directly to your device. This app serves as a resource for union members.

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

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is Heating & Ventilating Review free?

Heating & Ventilating Review is free to download, with no in-app purchases.

### Is IRONWORKERS 229 free?

IRONWORKERS 229 is free to download, with no in-app purchases.

### Do Heating & Ventilating Review or IRONWORKERS 229 have ads?

Neither Heating & Ventilating Review nor IRONWORKERS 229 shows ads.

### Which is updated more often, Heating & Ventilating Review or IRONWORKERS 229?

Heating & Ventilating Review ships an update every 8 months, and IRONWORKERS 229 every 3 months. Most recently, Heating & Ventilating Review was updated on November 1, 2026 and IRONWORKERS 229 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.*