# EP CUBE vs Sunnova Catalyst

The clearest difference is rating: Sunnova Catalyst at 4.6 against EP CUBE's 4.1. Sunnova Catalyst also leads on update cadence (fortnightly vs every 6 weeks) and ratings volume (43 vs 9). On price, ads, in-app purchases and monetization model 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 4.1. Both are backed by a comparable volume of ratings — 9 and 43 respectively.

EP CUBE ships an update every 6 weeks, Sunnova Catalyst fortnightly. The most recent releases landed on September 14, 2026 and June 2, 2026 respectively.

## The numbers

| Metric | EP CUBE | Sunnova Catalyst |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.1 (9 ratings)](https://appshunter.io/ios/app/ep-cube/id1638851614/reviews) | **[4.6 (43 ratings)](https://appshunter.io/ios/app/sunnova-catalyst/id1664577662/reviews)** |
| Number of ratings | 9 | **43** |
| Positive reviews | 75.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Fortnightly** |
| Monetization | Free | Free |
| Size | 56 MB | 73 MB |
| Requires iOS | 14.0 | **13.4** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Eternalplanet Energy Co., Ltd](https://appshunter.io/developer/1638851616) | [Sunnova Energy Corp](https://appshunter.io/developer/1435520898) |

## What reviewers say

### EP CUBE

[App page](https://appshunter.io/ios/app/ep-cube/id1638851614)

Monitor and manage your EP Cube system with this interface. It offers all-in-one system performance tracking, energy production/usage analysis, and operational mode configuration. Easily request service and troubleshoot issues.

**Highlights:** System performance monitoring, Energy production/usage reports, Operation mode configuration, Service request, Troubleshooting

**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 EP CUBE free?

EP CUBE 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, EP CUBE or Sunnova Catalyst?

Sunnova Catalyst is rated higher. EP CUBE averages 4.1 out of 5 from 9 ratings, while Sunnova Catalyst averages 4.6 from 43 ratings.

### Do EP CUBE or Sunnova Catalyst have ads?

Neither EP CUBE nor Sunnova Catalyst shows ads.

### Which is updated more often, EP CUBE or Sunnova Catalyst?

EP CUBE ships an update every 6 weeks, and Sunnova Catalyst fortnightly. Most recently, EP CUBE was updated on September 14, 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.*