# Aptos End User vs Sunnova Catalyst

The clearest difference is rating: Sunnova Catalyst at 4.6 against Aptos End User's 3.5. Sunnova Catalyst also leads on update cadence (fortnightly vs every 7 months) and ratings volume (43 vs 2). 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 3.5. That said, the two scores are not equally well evidenced: Sunnova Catalyst has 43 ratings behind it against 2, so its average is the more settled of the two.

Aptos End User ships an update every 7 months, Sunnova Catalyst fortnightly. The most recent releases landed on September 11, 2026 and June 2, 2026 respectively.

## The numbers

| Metric | Aptos End User | Sunnova Catalyst |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.5 (2 ratings)](https://appshunter.io/ios/app/aptos-end-user/id1589749162/reviews) | **[4.6 (43 ratings)](https://appshunter.io/ios/app/sunnova-catalyst/id1664577662/reviews)** |
| Number of ratings | 2 | **43** |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Fortnightly** |
| Monetization | Free | Free |
| Size | 31 MB | 73 MB |
| Requires iOS | **12.0** | 13.4 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Aptos Solar Technology LLC](https://appshunter.io/developer/1589720272) | [Sunnova Energy Corp](https://appshunter.io/developer/1435520898) |

## What reviewers say

### Aptos End User

[App page](https://appshunter.io/ios/app/aptos-end-user/id1589749162)

Monitor your distributed PV power plants from anywhere. View real-time operating data, energy generation over various periods, and equipment alarms to ensure optimal performance and expected yield.

**Highlights:** Module-level monitoring, Real-time data display, Energy generation tracking (daily, monthly, annual, total), Alarm information display, Operation monitoring, Yield optimization

**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 Aptos End User free?

Aptos End User 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, Aptos End User or Sunnova Catalyst?

Sunnova Catalyst is rated higher. Aptos End User averages 3.5 out of 5 from 2 ratings, while Sunnova Catalyst averages 4.6 from 43 ratings.

### Do Aptos End User or Sunnova Catalyst have ads?

Neither Aptos End User nor Sunnova Catalyst shows ads.

### Which is updated more often, Aptos End User or Sunnova Catalyst?

Aptos End User ships an update every 7 months, and Sunnova Catalyst fortnightly. Most recently, Aptos End User was updated on September 11, 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.*