# OELCHECK 4.0 vs Walterscheid Connected Service

The clearest difference is review sentiment: Walterscheid Connected Service at 50% against OELCHECK 4.0's 33%. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

OELCHECK 4.0 ships an update every 3 months, Walterscheid Connected Service every 2 months. The most recent releases landed on October 9, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | OELCHECK 4.0 | Walterscheid Connected Service |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 33.3% of reviews | **50.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Free | Free |
| Size | 24 MB | 54 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [OELCHECK GmbH](https://appshunter.io/developer/1210793145) | [Walterscheid GmbH](https://appshunter.io/developer/1520933457) |

## What reviewers say

### OELCHECK 4.0

[App page](https://appshunter.io/ios/app/oelcheck-40/id1474067028)

Streamline lubricant and operating fluid sample management. Easily enter data, view lab reports, and manage machine information anytime, even offline. Optimize your analysis kits with this efficient digital tool.

**Highlights:** Sample data entry via QR code or machine search, Offline data entry and online synchronization, View sample status and lab reports, Attach up to five photos per sample, Manage machine data, Optimized analysis kit usage

**Features:** macOS Compatibility

**In-app purchases:** none


### Walterscheid Connected Service

[App page](https://appshunter.io/ios/app/walterscheid-connected-service/id1571069466)

This app provides farmers and contractors with easy access to maintenance and repair instructions for shafts and machines. It digitally documents all maintenance work performed, helping to extend the service life of equipment and improve operational reliability.

**Highlights:** Maintenance and repair instructions, Digital documentation of work, QR code identification, Product information access, Team synchronization, Reduced lubricant consumption

**In-app purchases:** none


## Frequently asked questions

### Is OELCHECK 4.0 free?

OELCHECK 4.0 is free to download, with no in-app purchases.

### Is Walterscheid Connected Service free?

Walterscheid Connected Service is free to download, with no in-app purchases.

### Do OELCHECK 4.0 or Walterscheid Connected Service have ads?

Neither OELCHECK 4.0 nor Walterscheid Connected Service shows ads.

### Which is updated more often, OELCHECK 4.0 or Walterscheid Connected Service?

OELCHECK 4.0 ships an update every 3 months, and Walterscheid Connected Service every 2 months. Most recently, OELCHECK 4.0 was updated on October 9, 2026 and Walterscheid Connected Service on October 6, 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.*