# MRU4u vs Appio App

The clearest difference is update cadence: Appio App at fortnightly against MRU4u's every 5 weeks. MRU4u's advantage is iOS requirement (15.0 vs 17.5). On price, ads, in-app purchases and monetization model there is nothing between them.

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, Appio App fortnightly. The most recent releases landed on June 9, 2026 and June 12, 2026 respectively.

## The numbers

| Metric | MRU4u | Appio App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/appio-app/id6736359699/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 16.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Fortnightly** |
| Monetization | Free | Free |
| Size | 136 MB | 54 MB |
| Requires iOS | **15.0** | 17.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [MRU Messgeräte für Rauchgase und Umweltschutz GmbH](https://appshunter.io/developer/1110341400) | [Appio Limited](https://appshunter.io/developer/1771615429) |

## What reviewers say

### 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


### Appio App

[App page](https://appshunter.io/ios/app/appio-app/id6736359699)

This app allows users to access mobile features from services they subscribe to, such as real-time notifications and widgets. Businesses can quickly offer these mobile capabilities without custom app development.

**Highlights:** Real-time notifications, Service widgets, No app development required for businesses, Customer connectivity to services, Fast mobile feature deployment

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is MRU4u free?

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

### Is Appio App free?

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

### Do MRU4u or Appio App have ads?

Neither MRU4u nor Appio App shows ads.

### Which is updated more often, MRU4u or Appio App?

MRU4u ships an update every 5 weeks, and Appio App fortnightly. Most recently, MRU4u was updated on June 9, 2026 and Appio App on June 12, 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.*