# RMU3 Config vs FieldSense MeterSense

RMU3 Config and FieldSense MeterSense are too close to call on the numbers: across 7 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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, FieldSense MeterSense every 3 months. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | RMU3 Config | FieldSense MeterSense |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (1 ratings)](https://appshunter.io/ios/app/rmu3-config/id1089017766/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 months** |
| Monetization | Free | Free |
| Size | 23 MB | 56 MB |
| Requires iOS | **15.6** | 16.3 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Mobiltex Data](https://appshunter.io/developer/1050682800) | [Honeywell International, Inc.](https://appshunter.io/developer/311222963) |

## 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


### FieldSense MeterSense

[App page](https://appshunter.io/ios/app/fieldsense-metersense/id1671630716)

This utility app facilitates the administration, configuration, and service of Honeywell smart meters. It enables communication with various Honeywell meter families, supports multiple ANSI C12 protocols, and allows for local or remote meter readings. Data can be stored, viewed, managed, and synchronized to a server.

**Highlights:** Honeywell smart meter communication, Support for ANSI C12 protocols, Local and remote meter readings, Meter data storage and management, Meter location and photo association, Synchronization to Metercat Server, Extensive meter function library

**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 FieldSense MeterSense free?

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

### Do RMU3 Config or FieldSense MeterSense have ads?

Neither RMU3 Config nor FieldSense MeterSense shows ads.

### Which is updated more often, RMU3 Config or FieldSense MeterSense?

RMU3 Config ships an update every 4 months, and FieldSense MeterSense every 3 months. Most recently, RMU3 Config was updated on November 2, 2026 and FieldSense MeterSense on November 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.*