# Ironworkers 851 vs Ironworkers 580 MAP

The clearest difference is update cadence: Ironworkers 851 at every 3 months against Ironworkers 580 MAP's every 6 months. 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.

Ironworkers 851 ships an update every 3 months, Ironworkers 580 MAP every 6 months. Both last shipped on October 25, 2026.

## The numbers

| Metric | Ironworkers 851 | Ironworkers 580 MAP |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 6 months |
| Size | 117 MB | 118 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 17+ |
| Developer | [IRON WORKERS REGIONAL SHOP LOCAL UNION NO 851](https://appshunter.io/developer/1676585554) | [INTERNATIONAL ASSOCIATION OF BRIDGE IRONWORKERS LOCAL 417](https://appshunter.io/developer/1648074315) |

## What reviewers say

### Ironworkers 851

[App page](https://appshunter.io/ios/app/ironworkers-851/id6446193337)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


### Ironworkers 580 MAP

[App page](https://appshunter.io/ios/app/ironworkers-580-map/id6745402084)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is Ironworkers 851 free?

Ironworkers 851 is free to download, with no in-app purchases.

### Is Ironworkers 580 MAP free?

Ironworkers 580 MAP is free to download, with no in-app purchases.

### Do Ironworkers 851 or Ironworkers 580 MAP have ads?

Neither Ironworkers 851 nor Ironworkers 580 MAP shows ads.

### Which is updated more often, Ironworkers 851 or Ironworkers 580 MAP?

Ironworkers 851 ships an update every 3 months, and Ironworkers 580 MAP every 6 months. Most recently, Ironworkers 851 was updated on October 25, 2026 and Ironworkers 580 MAP on October 25, 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.*