MRU4u vs FA 4xx App
Price, ratings, monetisation and update history for both apps, side by side — 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.
FA 4xx App
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Die Wöhler Flügelradanemometer FA 410 und FA 430 ab Version 5.1 senden Messdaten per Bluetooth® an mobile Endgeräte. Die Messwerte werden in der Wöhler FA 4xx App auf dem Display des mobilen Endgerätes dargestellt und lassen sich in der App speichern. Dabei kann die App gleichzeitig die Messdaten mehrerer Anemometer anzeigen. Aus der App lassen sich die gespeicherten Daten über ein Email-Programm oder einen Messenger-Dienst versenden. Außerdem können über die App per Bluetooth® Einstellungen am Flügelradanemometer vorgenommen werden.
Screenshots
Verdict
The clearest difference is update cadence: MRU4u at every 5 weeks against FA 4xx App's every 34 months. FA 4xx App's advantage is iOS requirement (9.0 vs 15.0). 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
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, FA 4xx App every 34 months. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.
| Parameter | MRU4u | FA 4xx App |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 16.7% of reviews | — |
| Update frequency | Every 5 weeks — better | Every 34 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 9.0 — better |
| Further details — not scored | ||
| Size | 145 MB | 93 MB |
| Age rating | 4+ | 4+ |
| Developer | MRU Messgeräte für Rauchgase und Umweltschutz GmbH | Woehler Technik GmbH |
In-app purchases
MRU4u
No in-app purchases
FA 4xx App
No in-app purchases
