# Sunnova vs GnG Owner

Sunnova and GnG Owner both sit at 3.9 stars, but that hides the real split: 100% of GnG Owner's written reviews are positive against 6% of Sunnova's. Sunnova's advantage is ratings volume (860 vs 4) and iOS requirement (15.1 vs 17.0). On price, rating, 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.

On the App Store both sit at effectively the same score — 3.9 for Sunnova against 4.0 for GnG Owner. That said, the two scores are not equally well evidenced: Sunnova has 860 ratings behind it against 4, so its average is the more settled of the two. Written reviews are what separate them: 6% of Sunnova's written reviews are positive against 100% of GnG Owner's.

Sunnova ships an update every 3 weeks, GnG Owner fortnightly. The most recent releases landed on October 30, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Sunnova | GnG Owner |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.9 (860 ratings)](https://appshunter.io/ios/app/sunnova/id1604631393/reviews) | **[4.0 (4 ratings)](https://appshunter.io/ios/app/gng-owner/id6777156208/reviews)** |
| Number of ratings | **860** | 4 |
| Positive reviews | 6.3% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Fortnightly** |
| Monetization | Free | Free |
| Size | 87 MB | 38 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Sunnova Energy](https://appshunter.io/developer/1435520898) | [Daniel Hong](https://appshunter.io/developer/1846216979) |

## What reviewers say

### Sunnova

[App page](https://appshunter.io/ios/app/sunnova/id1604631393)

Manage your home's energy ecosystem, including solar, storage, and electric vehicles, from a single app. Monitor performance, optimize energy usage, and gain insights into your home's energy consumption.

**Highlights:** Manage solar, storage, and EV devices, View hourly, daily, and monthly performance, Optimize home energy usage, Monitor energy ecosystem, Gain performance insights

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use
- 🚀 Intuitive interface

**What reviewers complain about**

- 🐛 App crashes frequently
- ⚠️ Unreliable data
- 🔒 Login issues
- 💸 Poor customer service
- 🔋 Drains battery quickly

**Reported bugs**

- App freezes on startup
- Incorrect or missing production data
- Billing information not updating properly

**Requested features**

- Custom date range for production data
- Real-time energy usage and generation data
- Ability to view individual panel performance


### GnG Owner

[App page](https://appshunter.io/ios/app/gng-owner/id6777156208)

Manage your vacation or long-term rental properties with this owner portal. View property details, track rental activity, review income, and communicate with your property management team. Request services and stay updated on property matters.

**Highlights:** View property details and photos, Check rental calendars, Review income and statements, Request property services, Message property management team, Manage profile and account

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

**In-app purchases:** none


## Frequently asked questions

### Is Sunnova free?

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

### Is GnG Owner free?

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

### Which has better reviews, Sunnova or GnG Owner?

GnG Owner is rated higher. Sunnova averages 3.9 out of 5 from 860 ratings, while GnG Owner averages 4.0 from 4 ratings.

### Do Sunnova or GnG Owner have ads?

Neither Sunnova nor GnG Owner shows ads.

### Which is updated more often, Sunnova or GnG Owner?

Sunnova ships an update every 3 weeks, and GnG Owner fortnightly. Most recently, Sunnova was updated on October 30, 2026 and GnG Owner on October 15, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*