# M Professional vs Span Installer

The clearest difference is review sentiment: M Professional at 14% against Span Installer's 0%. M Professional also leads on device support (3 vs 1) and iOS requirement (13.0 vs 17.6). 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, Span Installer fortnightly. The most recent releases landed on July 5, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | M Professional | Span Installer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.7 (13 ratings)](https://appshunter.io/ios/app/span-installer/id1477128965/reviews)** |
| Number of ratings | — | **13** |
| Positive reviews | **14.3% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Fortnightly** |
| Monetization | Free | Free |
| Size | 20 MB | 104 MB |
| Requires iOS | **13.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [东 李](https://appshunter.io/developer/1228988491) | [Span.io, Inc](https://appshunter.io/developer/1477128844) |

## 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


### Span Installer

[App page](https://appshunter.io/ios/app/span-installer/id1477128965)

This app streamlines the installation and servicing of new and existing SPAN panels. It offers enhanced navigation, an improved breaker labeling process, and integrated troubleshooting support. Users can also confirm communications with battery systems and program setpoints for energy management.

**Highlights:** Faster new SPAN Panel commissioning, Simplified user navigation, Improved breaker labeling, Integrated troubleshooting and support, Confirm hardware communications, Program setpoints with SPAN PowerUp

**In-app purchases:** none


## Frequently asked questions

### Is M Professional free?

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

### Is Span Installer free?

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

### Do M Professional or Span Installer have ads?

Neither M Professional nor Span Installer shows ads.

### Which is updated more often, M Professional or Span Installer?

M Professional ships an update every 3 weeks, and Span Installer fortnightly. Most recently, M Professional was updated on July 5, 2026 and Span Installer on September 11, 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.*