# Sunnova vs ComfortAI

The clearest difference is review sentiment: ComfortAI at 100% against Sunnova's 6%. ComfortAI also leads on rating (5.0 vs 3.9). Sunnova's advantage is ratings volume (844 vs 5) and update cadence (every 3 weeks vs every 3 months). 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.

ComfortAI holds the better App Store score, 5.0 against 3.9. That said, the two scores are not equally well evidenced: Sunnova has 844 ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 6% of Sunnova's written reviews are positive against 100% of ComfortAI's.

Sunnova ships an update every 3 weeks, ComfortAI every 3 months. The most recent releases landed on October 14, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Sunnova | ComfortAI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.9 (844 ratings)](https://appshunter.io/ios/app/sunnova/id1604631393/reviews) | **[5.0 (5 ratings)](https://appshunter.io/ios/app/comfortai/id6468339830/reviews)** |
| Number of ratings | **844** | 5 |
| Positive reviews | 6.3% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 3 months |
| Monetization | Free | Free |
| Size | 87 MB | 25 MB |
| Requires iOS | **15.1** | 16.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [Sunnova Energy Corp](https://appshunter.io/developer/1435520898) | [ComfortAI, LLC](https://appshunter.io/developer/1709768274) |

## What reviewers say

### Sunnova

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

Take charge of your home's energy consumption. This app integrates solar, storage, and electric vehicle management into a single platform. Monitor performance, optimize usage, and gain insights into your energy ecosystem.

**Highlights:** Manage solar, storage, and EV devices, View energy performance (hourly, daily, monthly), Optimize home energy usage, Centralized energy ecosystem management, Control Sunnova Adaptive Home™

**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


### ComfortAI

[App page](https://appshunter.io/ios/app/comfortai/id6468339830)

Monitor your home's heating and cooling system remotely with real-time data and predictive AI. Receive alerts for potential issues and track energy usage to save money. Schedule HVAC service directly through the app.

**Highlights:** Real-time HVAC system status, Energy consumption tracking, Runtime averages, Air filter health monitoring, Predictive issue alerts, In-app service scheduling

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Sunnova free?

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

### Is ComfortAI free?

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

### Which has better reviews, Sunnova or ComfortAI?

ComfortAI is rated higher. Sunnova averages 3.9 out of 5 from 844 ratings, while ComfortAI averages 5.0 from 5 ratings.

### Do Sunnova or ComfortAI have ads?

Neither Sunnova nor ComfortAI shows ads.

### Which is updated more often, Sunnova or ComfortAI?

Sunnova ships an update every 3 weeks, and ComfortAI every 3 months. Most recently, Sunnova was updated on October 14, 2026 and ComfortAI on October 1, 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.*