# IUOE Local 793 vs GreenBook

The clearest difference is iOS requirement: GreenBook at 13 against IUOE Local 793's 15.0. 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.

IUOE Local 793 ships an update every 6 weeks, GreenBook every 3 months. The most recent releases landed on September 15, 2026 and June 1, 2026 respectively.

## The numbers

| Metric | IUOE Local 793 | GreenBook |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 3 months |
| Monetization | — | Free |
| Size | 44 MB | 26 MB |
| Requires iOS | 15.0 | **13** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [International Union Of Operating Engineers Local 793](https://appshunter.io/developer/1561184394) | [Tanner Mackenzie](https://appshunter.io/developer/1782692965) |

## What reviewers say

### IUOE Local 793

[App page](https://appshunter.io/ios/app/iuoe-local-793/id6479079312)

**In-app purchases:** none


### GreenBook

[App page](https://appshunter.io/ios/app/greenbook/id6738869708)

Access Ontario's Occupational Health and Safety Act and Regulations. This tool allows for easy searching, bookmarking, and highlighting of key passages to aid in workplace compliance. A downloadable safety board posting is also available.

**Highlights:** Access Ontario's Health and Safety Act, Searchable Regulations, Bookmark key passages, Highlight text, Global search across documents, Downloadable safety board posting

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is IUOE Local 793 free?

IUOE Local 793 is free to download, with no in-app purchases.

### Is GreenBook free?

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

### Do IUOE Local 793 or GreenBook have ads?

Neither IUOE Local 793 nor GreenBook shows ads.

### Which is updated more often, IUOE Local 793 or GreenBook?

IUOE Local 793 ships an update every 6 weeks, and GreenBook every 3 months. Most recently, IUOE Local 793 was updated on September 15, 2026 and GreenBook on June 1, 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.*