# M vs Sunnova Catalyst

The clearest difference is rating: Sunnova Catalyst at 4.6 against M's 3.7. On price, ratings volume, update cadence and ads there is nothing between them.

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

Sunnova Catalyst holds the better App Store score, 4.6 against 3.7. Both are backed by a comparable volume of ratings — 15 and 43 respectively.

M ships an update weekly, Sunnova Catalyst fortnightly. The most recent releases landed on September 23, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | M | Sunnova Catalyst |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.7 (15 ratings)](https://appshunter.io/ios/app/m-relay/id1515940156/reviews) | **[4.6 (43 ratings)](https://appshunter.io/ios/app/sunnova-catalyst/id1664577662/reviews)** |
| Number of ratings | 15 | **43** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Fortnightly |
| Monetization | Free | Free |
| Size | 40 MB | 73 MB |
| Requires iOS | **13.2** | 13.4 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Pro Custom Solar LLC](https://appshunter.io/developer/1446032763) | [Sunnova Energy Corp](https://appshunter.io/developer/1435520898) |

## What reviewers say

### M

[App page](https://appshunter.io/ios/app/m-relay/id1515940156)

This mobile tool empowers sales teams to track field activities and gain real-time insights into their performance. It offers a comprehensive history of client interactions and ensures accountability through location verification.

**Highlights:** Field activity tracking, Sales performance visibility, Team productivity improvement, Real-time account history, Location verification

**Features:** macOS Compatibility

**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 free?

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

### Is Sunnova Catalyst free?

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

### Which has better reviews, M or Sunnova Catalyst?

Sunnova Catalyst is rated higher. M averages 3.7 out of 5 from 15 ratings, while Sunnova Catalyst averages 4.6 from 43 ratings.

### Do M or Sunnova Catalyst have ads?

Neither M nor Sunnova Catalyst shows ads.

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

M ships an update weekly, and Sunnova Catalyst fortnightly. Most recently, M was updated on September 23, 2026 and Sunnova Catalyst on September 29, 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.*