# Wilo vs MRU4u

The clearest difference is review sentiment: Wilo at 66% against MRU4u's 17%. MRU4u's advantage is iOS requirement (15.0 vs 18.6). 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.

Wilo ships an update every 3 weeks, MRU4u every 5 weeks. The most recent releases landed on September 24, 2026 and June 9, 2026 respectively.

## The numbers

| Metric | Wilo | MRU4u |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | **66.2% of reviews** | 16.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 5 weeks |
| Monetization | Free | Free |
| Size | 181 MB | 136 MB |
| Requires iOS | 18.6 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [WILO SE](https://appshunter.io/developer/756670903) | [MRU Messgeräte für Rauchgase und Umweltschutz GmbH](https://appshunter.io/developer/1110341400) |

## What reviewers say

### Wilo

[App page](https://appshunter.io/ios/app/wilo-assistant/id397747214)

This app provides comprehensive support for planning, consulting, and installing pump technology. It offers tools for selecting replacement pumps, calculating energy savings, and diagnosing faults, even offline. Access detailed product information and control smart pumps.

**Highlights:** Smart pump control and settings, Interactive replacement pump recommendations, Energy savings and CO2 emission calculator, Pump dimensioning and selection, Fault signal diagnosis and remedies, Unit conversion tool, AR product scanner

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

**In-app purchases:** none


### MRU4u

[App page](https://appshunter.io/ios/app/mru4u/id1110341401)

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:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Wilo free?

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

### Is MRU4u free?

MRU4u is free to download, with no in-app purchases.

### Do Wilo or MRU4u have ads?

Neither Wilo nor MRU4u shows ads.

### Which is updated more often, Wilo or MRU4u?

Wilo ships an update every 3 weeks, and MRU4u every 5 weeks. Most recently, Wilo was updated on September 24, 2026 and MRU4u on June 9, 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.*