# A3 Smart Home vs Sunnova

The clearest difference is rating: A3 Smart Home at 4.6 against Sunnova's 3.9. A3 Smart Home also leads on review sentiment (29% vs 6%). Sunnova's advantage is update cadence (every 3 weeks vs every 2 months) and iOS requirement (15.1 vs 17.0). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

A3 Smart Home holds the better App Store score, 4.6 against 3.9. Both are backed by a comparable volume of ratings — 1.8K and 857 respectively. Written reviews point the same way: 29% of A3 Smart Home's written reviews are positive against 6% of Sunnova's.

A3 Smart Home ships an update every 2 months, Sunnova every 3 weeks. The most recent releases landed on October 26, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | A3 Smart Home | Sunnova |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (1.8K ratings)](https://appshunter.io/ios/app/a3-smart-home/id1489258106/reviews)** | [3.9 (857 ratings)](https://appshunter.io/ios/app/sunnova/id1604631393/reviews) |
| Number of ratings | **1.8K** | 857 |
| Positive reviews | **28.8% of reviews** | 6.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 387 MB | 87 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [A3 Smart Home LP](https://appshunter.io/developer/1489258105) | [Sunnova Energy Corp](https://appshunter.io/developer/1435520898) |

## What reviewers say

### A3 Smart Home

[App page](https://appshunter.io/ios/app/a3-smart-home/id1489258106)

Monitor and control your home or business in real-time from your mobile devices. Manage security, video surveillance, energy usage, and home automation with instant awareness and remote control.

**Highlights:** Energy management, System control, Customizable scheduling, Mobile notifications, Video surveillance, Event history logging

**Features:** macOS Compatibility, Apple Watch app

**In-app purchases:** none


### 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


## Frequently asked questions

### Is A3 Smart Home free?

A3 Smart Home is free to download, with no in-app purchases.

### Is Sunnova free?

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

### Which has better reviews, A3 Smart Home or Sunnova?

A3 Smart Home is rated higher. A3 Smart Home averages 4.6 out of 5 from 1.8K ratings, while Sunnova averages 3.9 from 857 ratings.

### Do A3 Smart Home or Sunnova have ads?

Neither A3 Smart Home nor Sunnova shows ads.

### Which is updated more often, A3 Smart Home or Sunnova?

A3 Smart Home ships an update every 2 months, and Sunnova every 3 weeks. Most recently, A3 Smart Home was updated on October 26, 2026 and Sunnova on October 22, 2026.

---

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