EP CUBE vs Sunnova Catalyst
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
EP CUBE
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.
- System performance monitoring
- Energy production/usage reports
- Operation mode configuration
- Service request
- Troubleshooting
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This is the monitoring interface for EP Cube system owners. Delivering all-in-one monitoring & management experience, easy troubleshooting and service request also included. - System performance monitoring and analyzing. - Check daily, monthly, yearly reports of energy production and usage. - Operation mode configuration adjusting. - Service requesting and troubleshooting.
Sunnova Catalyst
This app simplifies the solar installation review process by allowing users to capture and track commissioning photos. It streamlines the workflow for solar professionals.
- Streamlines commissioning process
- Capture commissioning photos
- Track solar installation review
- Solar professional workflow optimization
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The Sunnova Catalyst mobile app streamlines the Sunnova commissioning process to help users capture their commissioning photos and track their solar installation review.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | EP CUBE | Sunnova Catalyst |
|---|---|---|
| Price | Free | Free |
| Rating | 4.1 (9 ratings) | 4.6 (43 ratings) — better |
| Positive reviews | 75.0% of reviews | — |
| Number of ratings | 9 | 43 — better |
| Update frequency | Every 6 weeks | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 14.0 | 13.4 — better |
| Further details — not scored | ||
| Size | 56 MB | 73 MB |
| Age rating | 4+ | 4+ |
| Developer | Eternalplanet Energy Co., Ltd | Sunnova Energy Corp |
Customer experience
EP CUBE
Sunnova Catalyst
In-app purchases
EP CUBE
No in-app purchases
Sunnova Catalyst
No in-app purchases
