# IAM 751 vs OBS Inventory

The clearest difference is update cadence: OBS Inventory at every 2 months against IAM 751's every 76 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.

IAM 751 ships an update every 76 months, OBS Inventory every 2 months. The most recent releases landed on September 9, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | IAM 751 | OBS Inventory |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/iam-751/id1391845072/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 76 months | **Every 2 months** |
| Monetization | Free | — |
| Size | 3 MB | 89 MB |
| Requires iOS | **14.6** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Aerospace Industrial District Lodge 751](https://appshunter.io/developer/1391845071) | [Consortium Services, LLC](https://appshunter.io/developer/638883949) |

## What reviewers say

### IAM 751

[App page](https://appshunter.io/ios/app/iam-751/id1391845072)

This official union app provides members with exclusive access to union information, contract details, and event calendars. It facilitates communication and offers resources related to benefits, legislation, and union activities.

**Highlights:** Member exclusive content, Contract 2024 access, Union communications, Events calendar, Health & Benefits information, Machinists Institute resources, Push notifications

**Features:** macOS Compatibility

**In-app purchases:** none


### OBS Inventory

[App page](https://appshunter.io/ios/app/obs-inventory/id6443739933)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is IAM 751 free?

IAM 751 is free to download, with no in-app purchases.

### Is OBS Inventory free?

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

### Do IAM 751 or OBS Inventory have ads?

Neither IAM 751 nor OBS Inventory shows ads.

### Which is updated more often, IAM 751 or OBS Inventory?

IAM 751 ships an update every 76 months, and OBS Inventory every 2 months. Most recently, IAM 751 was updated on September 9, 2026 and OBS Inventory on September 17, 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.*