# AD Inventory vs Usiminas

The clearest difference is update cadence: AD Inventory at fortnightly against Usiminas's every 2 months. Usiminas's advantage is iOS requirement (11.0 vs 17.6). 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.

AD Inventory ships an update fortnightly, Usiminas every 2 months. The most recent releases landed on November 6, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | AD Inventory | Usiminas |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.1 (73 ratings)](https://appshunter.io/ios/app/ad-inventory/id1276019206/reviews)** | — |
| Number of ratings | **73** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 2 months |
| Monetization | Free | — |
| Size | 116 MB | 47 MB |
| Requires iOS | 17.6 | **11.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [ZippyYum](https://appshunter.io/developer/510770552) | [Usinas Siderúrgicas de Minas Gerais S.A.](https://appshunter.io/developer/623394808) |

## What reviewers say

### AD Inventory

[App page](https://appshunter.io/ios/app/ad-inventory/id1276019206)

Streamline inventory management with this app, offering error prevention, voice recognition, and RFID scanning for efficient stock tracking and ordering. It automates data entry and supports multiple users and languages, saving significant labor hours.

**Highlights:** Error prevention algorithms, Voice recognition inventory, Barcode scanning, RFID inventory, Multi-user support, Automated re-ordering, Customizable conversions

**Features:** macOS Compatibility

**In-app purchases:** none


### Usiminas

[App page](https://appshunter.io/ios/app/usiminas-extranet-mobile/id1662385060)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is AD Inventory free?

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

### Is Usiminas free?

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

### Do AD Inventory or Usiminas have ads?

Neither AD Inventory nor Usiminas shows ads.

### Which is updated more often, AD Inventory or Usiminas?

AD Inventory ships an update fortnightly, and Usiminas every 2 months. Most recently, AD Inventory was updated on November 6, 2026 and Usiminas on October 27, 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.*