# M Professional vs Sunnova Catalyst

M Professional and Sunnova Catalyst 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.

M Professional ships an update every 3 weeks, Sunnova Catalyst fortnightly. The most recent releases landed on July 5, 2026 and June 2, 2026 respectively.

## The numbers

| Metric | M Professional | Sunnova Catalyst |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.6 (43 ratings)](https://appshunter.io/ios/app/sunnova-catalyst/id1664577662/reviews)** |
| Number of ratings | — | **43** |
| Positive reviews | 14.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Fortnightly** |
| Monetization | Free | Free |
| Size | 20 MB | 73 MB |
| Requires iOS | **13.0** | 13.4 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [东 李](https://appshunter.io/developer/1228988491) | [Sunnova Energy Corp](https://appshunter.io/developer/1435520898) |

## 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


### Sunnova Catalyst

[App page](https://appshunter.io/ios/app/sunnova-catalyst/id1664577662)

This app simplifies the solar installation review process by allowing users to capture and track commissioning photos. It streamlines the workflow for solar professionals.

**Highlights:** Streamlines commissioning process, Capture commissioning photos, Track solar installation review, Solar professional workflow optimization

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is M Professional free?

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

### Is Sunnova Catalyst free?

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

### Do M Professional or Sunnova Catalyst have ads?

Neither M Professional nor Sunnova Catalyst shows ads.

### Which is updated more often, M Professional or Sunnova Catalyst?

M Professional ships an update every 3 weeks, and Sunnova Catalyst fortnightly. Most recently, M Professional was updated on July 5, 2026 and Sunnova Catalyst on June 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.*