# CertOps vs Usiminas

The clearest difference is update cadence: Usiminas at every 2 months against CertOps's every 14 months. Usiminas also leads on iOS requirement (11.0 vs 13.0). 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.

CertOps ships an update every 14 months, Usiminas every 2 months. The most recent releases landed on August 12, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | CertOps | Usiminas |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.6 (8 ratings)](https://appshunter.io/ios/app/certops/id1421180511/reviews)** | — |
| Number of ratings | **8** | — |
| Positive reviews | 28.6% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 14 months | **Every 2 months** |
| Monetization | Free | — |
| Size | 18 MB | 47 MB |
| Requires iOS | 13.0 | **11.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [PlayStation Mobile Inc.](https://appshunter.io/developer/912472174) | [Usinas Siderurgicas de Minas Gerais S.A.](https://appshunter.io/developer/623394808) |

## What reviewers say

### CertOps

[App page](https://appshunter.io/ios/app/certops/id1421180511)

This business application allows partners to manage product certification processes. A valid Certification Center account is necessary to access its features and functionalities.

**Highlights:** Product certification management, Partner access, Certification Center integration, Mobile accessibility

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

**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 CertOps free?

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

### Is Usiminas free?

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

### Do CertOps or Usiminas have ads?

Neither CertOps nor Usiminas shows ads.

### Which is updated more often, CertOps or Usiminas?

CertOps ships an update every 14 months, and Usiminas every 2 months. Most recently, CertOps was updated on August 12, 2026 and Usiminas on September 12, 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.*