# RMU3 Config vs NVReTOOL

The clearest difference is update cadence: NVReTOOL at every 3 weeks against RMU3 Config's every 4 months. On price, ads, in-app purchases and device support there is nothing between them.

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

RMU3 Config ships an update every 4 months, NVReTOOL every 3 weeks. The most recent releases landed on August 30, 2026 and September 3, 2026 respectively.

## The numbers

| Metric | RMU3 Config | NVReTOOL |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (1 ratings)](https://appshunter.io/ios/app/rmu3-config/id1089017766/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 23 MB | 59 MB |
| Requires iOS | 15.6 | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Mobiltex Data](https://appshunter.io/developer/1050682800) | [North Valley Research Co., Ltd.](https://appshunter.io/developer/1373532179) |

## What reviewers say

### RMU3 Config

[App page](https://appshunter.io/ios/app/rmu3-config/id1089017766)

Configure and monitor cathodic protection rectifiers remotely. This app connects via Bluetooth to the RMU3 unit, allowing full control over settings, viewing diagnostic information, and managing measurement data. It requires specific hardware to function.

**Highlights:** Bluetooth configuration interface, Remote monitoring of cathodic protection rectifiers, Full RMU3 configuration, View readings and limits, Diagnostic status screen, Integrated manual and wiring diagrams

**Features:** Vision Pro support

**In-app purchases:** none


### NVReTOOL

[App page](https://appshunter.io/ios/app/nvretool/id1570449409)

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

**In-app purchases:** none


## Frequently asked questions

### Is RMU3 Config free?

RMU3 Config is free to download, with no in-app purchases.

### Is NVReTOOL free?

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

### Do RMU3 Config or NVReTOOL have ads?

Neither RMU3 Config nor NVReTOOL shows ads.

### Which is updated more often, RMU3 Config or NVReTOOL?

RMU3 Config ships an update every 4 months, and NVReTOOL every 3 weeks. Most recently, RMU3 Config was updated on August 30, 2026 and NVReTOOL on September 3, 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.*