MRU4u vs OELCHECK 4.0
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
MRU4u
Control MRU Fluegas Monitoring Units remotely via Bluetooth. Transfer and store measured data on your smartphone or tablet, with options to export as CSV or email screenshots. View live data as text or charts, with customizable value displays.
- Bluetooth remote control
- Live data display (text/chart)
- Customizable data views
- Data storage on device
- CSV data export
- Email data screenshots
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Remote control of MRU Fluegas Monitoring Units via Bluetooth. Transfer to and storage of measured data on Smartphone and Tablet. Data export as CSV file or screenshot as an email attachment. Control the most important functions of your MRU unit with your iPhone or iPad. Measured data are shown live on the screen, either as text or as curve chart. Measured values to be indicated may be individually chosen by the user. Stored measuring data always comprise all possible values of the measuring unit. Measurements may be stored on the controlling unit, assigned to a heating facility and sent by mail.
OELCHECK 4.0
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The OELCHECK App 4.0 is the tool for our customers that enables them to quickly and easily enter sample data, view laboratory reports and manage machine data - at any time, even offline! You can find more information here: https://en.oelcheck.com/app With OELCHECK 4.0, you can enter your lubricant and operating fluid sample data in four simple steps: 1. Scan your machine's QR code or select machine/component. 2. Scan the barcode (laboratory number) from your printed Sample Information Form. 3. Add information about the sample 4. Confirm with βSendβ. There is no need to fill in the Sample Information Form by hand. Simply tick the box βSample information provided onlineβ on the printed Sample Information Form and enclose it with your lubricant or operating fluid sample. Your advantages at a glance - Easier: The machine is recognized automatically. - Faster: You only need to add a few details. - More modern: The data is entered via smartphone without pen and paper. - More efficient: You optimize your use of the all-inclusive analysis sets. Features in the login area - Sample entry: Simply scan the machine QR code or use the machine search function - Offline mode: Enter the data offline and transfer it as soon as you are online again. - Sample status check: Call up the status of your samples. - Sample photo: You can add up to five photos to a sample. - Lab report: View your last lab report for a sample entered with the app. Don't have a QR code sticker for your machine yet? You can create and print machine QR codes yourself in your user account under LAB.REPORT. On request, we can also send you your QR codes as practical, oil- and weather-resistant QR code stickers. Simply give us a call on +49(0)8034-9047-250 or send us an e-mail to: sales@oelcheck.de. Attach the QR code sticker to your machine directly near the sampling point. To use the app you need: - All-inclusive analysis kit from OELCHECK (available at https://en.oelcheck.com/shop) - A free user account with LAB.REPORT - Supported languages: German, English Not yet an OELCHECK customer? Visit our website https://en.oelcheck.com to find out more about our test methods and our comprehensive range of all-inclusive analysis kits for the professional testing and evaluation of lubricants and operating fluids from a wide variety of applications.
Screenshots
Verdict
The clearest difference is update cadence: MRU4u at every 5 weeks against OELCHECK 4.0's every 3 months. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
MRU4u ships an update every 5 weeks, OELCHECK 4.0 every 3 months. The most recent releases landed on June 9, 2026 and September 8, 2026 respectively.
| Parameter | MRU4u | OELCHECK 4.0 |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 16.7% of reviews | β |
| Update frequency | Every 5 weeks β better | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | β |
| Devices | iPhone, iPad, iPod β better | iPhone, iPod |
| Requires iOS | 15.0 | 15.0 |
| Further details β not scored | ||
| Size | 136 MB | 24 MB |
| Age rating | 4+ | 4+ |
| Developer | MRU MessgerΓ€te fΓΌr Rauchgase und Umweltschutz GmbH | OELCHECK GmbH |
In-app purchases
MRU4u
No in-app purchases
OELCHECK 4.0
No in-app purchases
Questions
Is MRU4u free?
Is OELCHECK 4.0 free?
Do MRU4u or OELCHECK 4.0 have ads?
Which is updated more often, MRU4u or OELCHECK 4.0?
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