# M Professional vs eGauge

The clearest difference is review sentiment: eGauge at 33% against M Professional's 14%. 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.

M Professional ships an update every 3 weeks, eGauge every 6 weeks. Both last shipped on November 2, 2026.

## The numbers

| Metric | M Professional | eGauge |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.9 (9 ratings)](https://appshunter.io/ios/app/egauge/id1452612472/reviews)** |
| Number of ratings | — | **9** |
| Positive reviews | 14.3% of reviews | **33.3% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 6 weeks |
| Monetization | Free | Free |
| Size | 20 MB | 9 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [东 李](https://appshunter.io/developer/1228988491) | [eGauge Systems, LLC](https://appshunter.io/developer/1452612471) |

## What reviewers say

### M Professional

[App page](https://appshunter.io/ios/app/m-professional/id1385941241)

Monitor and configure your solar inverter system in real-time. Request RMA services and perform daily maintenance using Bluetooth Low Energy. Stay informed about your system's status and parameters.

**Highlights:** Real-time status monitoring, Parameter configuration, RMA service requests, Daily maintenance, BLE communication

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

**In-app purchases:** none


### eGauge

[App page](https://appshunter.io/ios/app/egauge/id1452612472)

Access your eGauge devices remotely from your phone or tablet. The app automatically selects the optimal connection, whether local network, cloud, or Bluetooth. It supports multiple devices, favorite lists, and alerts for pending issues.

**Highlights:** Remote device access, Automatic connection selection (LAN, Cloud, Bluetooth), Multiple device management, Favorite and recent device lists, Alerts for pending issues, Firmware upgrade recommendation

**In-app purchases:** none


## Frequently asked questions

### Is M Professional free?

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

### Is eGauge free?

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

### Do M Professional or eGauge have ads?

Neither M Professional nor eGauge shows ads.

### Which is updated more often, M Professional or eGauge?

M Professional ships an update every 3 weeks, and eGauge every 6 weeks. Most recently, M Professional was updated on November 2, 2026 and eGauge on November 2, 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.*