Comparison

MRU4u vs KÜSTER

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • Bluetooth remote control
  • Live data display (text/chart)
  • Customizable data views
  • Data storage on device
  • CSV data export
  • Email data screenshots
Features
Read full description

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.

About

KÜSTER

Features
Read full description

Mit der Küster ProApp der Gerhard Küster GmbH sind Sie immer bestens ausgestattet - egal ob auf der Baustelle, im Lager oder im Büro. Schnell, einfach und zuverlässig: Die App bietet Ihnen alle wichtigen Funktionen direkt auf Ihrem Smartphone. Top-Funktionen: - Artikel suchen & direkt bestellen - mit Echtzeit-Preisen und Bestandsanzeige - Aufträge, Angebote & Lieferscheine einsehen - mobil und übersichtlich - Barcode-Scanner - Artikel sekundenschnell erfassen - Lagerorte finden & per Navigation ansteuern - Einfache, intuitive Bedienung - entwickelt für Profis im SHK-Handwerk Mit der Küster ProApp haben Sie Ihr digitales Werkzeug immer griffbereit - für mehr Effizienz, Flexibilität und Tempo im Arbeitsalltag. - Jetzt kostenlos herunterladen und durchstarten! Hinweis: Die Nutzung ist ausschließlich für registrierte Kunden der Gerhard Küster GmbH möglich (Login erforderlich). Anbieter der App: Gerhard Küster GmbH Neanderstr. 13 30165 ô Hannover https://sanikue.de/impressum/

Screenshots

MRU4u4 screens
KÜSTER4 screens

Verdict

The call

The clearest difference is update cadence: MRU4u at every 5 weeks against KÜSTER's every 13 months. On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

MRU4u ships an update every 5 weeks, KÜSTER every 13 months. The most recent releases landed on June 9, 2026 and September 6, 2026 respectively.

Scorecard1 real difference · 7 level
MRU4u versus KÜSTER: the parameters behind the verdict, then further details
ParameterMRU4uKÜSTER
PriceFreeFree
Positive reviews16.7% of reviews—
Update frequencyEvery 5 weeks — betterEvery 13 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.015.0
Further details — not scored
Size136 MB18 MB
Age rating4+4+
DeveloperMRU Messgeräte für Rauchgase und Umweltschutz GmbHSCT Schiele GmbH

In-app purchases

None

MRU4u

No in-app purchases

None

KÜSTER

No in-app purchases

Questions

Is MRU4u free?
MRU4u is free to download, with no in-app purchases.
Is KÜSTER free?
KÜSTER is free to download, with no in-app purchases.
Do MRU4u or KÜSTER have ads?
Neither MRU4u nor KÜSTER shows ads.
Which is updated more often, MRU4u or KÜSTER?
MRU4u ships an update every 5 weeks, and KÜSTER every 13 months. Most recently, MRU4u was updated on June 9, 2026 and KÜSTER on September 6, 2026.

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