# OCAS Authenticator vs MyInventoryRUs

The clearest difference is in-app purchases: OCAS Authenticator at none against MyInventoryRUs's 2. OCAS Authenticator also leads on iOS requirement (15.6 vs 17.0). MyInventoryRUs's advantage is update cadence (every 3 weeks vs every 5 months). On price, ads and device support there is nothing between them.

Both are free to download. MyInventoryRUs sells 2 in-app purchases, starting at $4.99 per month. OCAS Authenticator asks for nothing beyond the download.

OCAS Authenticator ships an update every 5 months, MyInventoryRUs every 3 weeks. The most recent releases landed on September 9, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | OCAS Authenticator | MyInventoryRUs |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 3 weeks** |
| Size | 31 MB | 5 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [NetKnights GmbH](https://appshunter.io/developer/1445401030) | [Rui Hu](https://appshunter.io/developer/1781837608) |

## What reviewers say

### OCAS Authenticator

[App page](https://appshunter.io/ios/app/ocas-authenticator/id6444557674)

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

**In-app purchases:** none


### MyInventoryRUs

[App page](https://appshunter.io/ios/app/myinventoryrus/id6762069460)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $4.99 | per month |
| Premium Annual | $39.99 | per year |


## Frequently asked questions

### Is OCAS Authenticator free?

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

### Is MyInventoryRUs free?

MyInventoryRUs is free to download, with in-app purchases available.

### Do OCAS Authenticator or MyInventoryRUs have ads?

Neither OCAS Authenticator nor MyInventoryRUs shows ads.

### Which is updated more often, OCAS Authenticator or MyInventoryRUs?

OCAS Authenticator ships an update every 5 months, and MyInventoryRUs every 3 weeks. Most recently, OCAS Authenticator was updated on September 9, 2026 and MyInventoryRUs on September 13, 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.*