# O vs Mahle Catalog

The clearest difference is update cadence: Mahle Catalog at every 2 months against O's every 18 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.

O ships an update every 18 months, Mahle Catalog every 2 months. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | O | Mahle Catalog |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.0 (1 ratings)](https://appshunter.io/ios/app/mahle-catalog/id1573850226/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 18 months | **Every 2 months** |
| Monetization | — | Free |
| Size | 16 MB | 95 MB |
| Requires iOS | **12.0** | 12.4 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | +4 |
| Developer | [HUTCHINSON](https://appshunter.io/developer/862345826) | [TecAlliance GmbH](https://appshunter.io/developer/708196115) |

## What reviewers say

### O

[App page](https://appshunter.io/ios/app/o-ring-info/id1369062925)

**Features:** macOS Compatibility

**In-app purchases:** none


### Mahle Catalog

[App page](https://appshunter.io/ios/app/mahle-catalog/id1573850226)

This app allows users to quickly search for and identify automotive parts. It provides access to technical support, helps locate dealers, and enables product authenticity verification through QR codes. Users can also receive notifications about relevant services and products.

**Highlights:** Fast product search, Technical service contact, Dealer locator, Product authenticity check, Service and product notifications

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

**In-app purchases:** none


## Frequently asked questions

### Is O free?

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

### Is Mahle Catalog free?

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

### Do O or Mahle Catalog have ads?

Neither O nor Mahle Catalog shows ads.

### Which is updated more often, O or Mahle Catalog?

O ships an update every 18 months, and Mahle Catalog every 2 months. Most recently, O was updated on November 2, 2026 and Mahle Catalog on November 3, 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.*