# Enphase Installer Toolkit vs Sunnova Catalyst

The clearest difference is ratings volume: Enphase Installer Toolkit at 6K against Sunnova Catalyst's 43. Sunnova Catalyst's advantage is rating (4.6 vs 4.3) and iOS requirement (13.4 vs 16.0). 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.

Sunnova Catalyst holds the better App Store score, 4.6 against 4.3. That said, the two scores are not equally well evidenced: Enphase Installer Toolkit has 6K ratings behind it against 43, so its average is the more settled of the two.

Both ship on a similar rhythm, roughly fortnightly. The most recent releases landed on October 12, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | Enphase Installer Toolkit | Sunnova Catalyst |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (6K ratings)](https://appshunter.io/ios/app/enphase-installer-toolkit/id1452583697/reviews) | **[4.6 (43 ratings)](https://appshunter.io/ios/app/sunnova-catalyst/id1664577662/reviews)** |
| Number of ratings | **6K** | 43 |
| Positive reviews | 31.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | Fortnightly |
| Monetization | Free | Free |
| Size | 348 MB | 73 MB |
| Requires iOS | 16.0 | **13.4** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Enphase Energy, Inc.](https://appshunter.io/developer/549523245) | [Sunnova Energy Corp](https://appshunter.io/developer/1435520898) |

## What reviewers say

### Enphase Installer Toolkit

[App page](https://appshunter.io/ios/app/enphase-installer-toolkit/id1452583697)

Streamline the installation and commissioning of Enphase Energy Systems. Configure and manage energy systems efficiently with this comprehensive toolkit.

**Highlights:** Install Enphase Energy Systems, Commission Enphase Energy Systems, Configure Enphase Energy Systems, Manage energy systems

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

**In-app purchases:** none

**What reviewers like**

- 🚀 Good app with simple functionality
- 👍 Works as expected
- 🚀 Faster and improved

**What reviewers complain about**

- 🐛 Buggy and inconsistent
- 🔍 Not user-friendly
- 🔍 Complicated and confusing
- 🔍 Difficult to use
- 🔍 Frustrating and inconvenient

**Reported bugs**

- Frequent app crashes and freezes
- Inconsistent login and authorization
- Inaccurate system data and reporting
- Compatibility issues with newer devices

**Requested features**

- Allow system owners to access and manage their own systems
- Improve sync and data accuracy
- Streamline commissioning and service processes
- Optimize for offline/low connectivity scenarios


### 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 Enphase Installer Toolkit free?

Enphase Installer Toolkit 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, Enphase Installer Toolkit or Sunnova Catalyst?

Sunnova Catalyst is rated higher. Enphase Installer Toolkit averages 4.3 out of 5 from 6K ratings, while Sunnova Catalyst averages 4.6 from 43 ratings.

### Do Enphase Installer Toolkit or Sunnova Catalyst have ads?

Neither Enphase Installer Toolkit nor Sunnova Catalyst shows ads.

### Which is updated more often, Enphase Installer Toolkit or Sunnova Catalyst?

Enphase Installer Toolkit ships an update fortnightly, and Sunnova Catalyst fortnightly. Most recently, Enphase Installer Toolkit was updated on October 12, 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.*