# MRU4u vs Annovate

The clearest difference is in-app purchases: MRU4u at none against Annovate's 2. MRU4u also leads on iOS requirement (15.0 vs 26.2). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Annovate sells 2 one-off in-app purchases. MRU4u asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 5 weeks. The most recent releases landed on November 6, 2026 and November 9, 2026 respectively.

## The numbers

| Metric | MRU4u | Annovate |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 16.7% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | Every 5 weeks |
| Monetization | Free | — |
| Size | 145 MB | 4 MB |
| Requires iOS | **15.0** | 26.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [MRU Messgeräte für Rauchgase und Umweltschutz GmbH](https://appshunter.io/developer/1110341400) | [Nelson Taruc](https://appshunter.io/developer/310549665) |

## 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, Vision Pro support

**In-app purchases:** none


### Annovate

[App page](https://appshunter.io/ios/app/annovate/id6759209680)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Annovate Basic | $0.99 | one-time |
| Annovate Pro | $4.99 | one-time |


## Frequently asked questions

### Is MRU4u free?

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

### Is Annovate free?

Annovate is free to download, with in-app purchases available.

### Do MRU4u or Annovate have ads?

Neither MRU4u nor Annovate shows ads.

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

MRU4u ships an update every 5 weeks, and Annovate every 5 weeks. Most recently, MRU4u was updated on November 6, 2026 and Annovate on November 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.*