A3 Smart Home vs Sunnova
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
A3 Smart Home
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.
- Energy management
- System control
- Customizable scheduling
- Mobile notifications
- Video surveillance
- Event history logging
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From automation to home security, we’re the smart choice. With an A3 Smart Home system you can monitor and control your home or business in real-time from your iPhone, iPad, or your Apple Watch. Our interactive security, video monitoring, energy management and home automation solutions give you instant awareness and remote control for the places you care about the most. A3 Smart Home offers: ● Energy Management. Lower bills by controlling your thermostat, lights and appliances from your phone. ● System Control. Activate your system, close your garage door and monitor your home's surveillance cameras. ● Custom Settings. Schedule your system, lights and thermostat to adjust automatically. ● Mobile Notifications. Get alerts on any mobile device that let you know when your system is armed/disarmed, your garage door is open, your front door is unlocked and when your cameras see someone. ● Video Surveillance. Check HD cameras from anywhere, store video clips and get real-time alerts right to your phone. ● History At A Glance Search your complete system event history Notifications Tailored To Your Needs. With A3 Smart Home you can receive real-time alerts via email, text and push notifications for specific events that matter to you. In addition to emergency related events you can be alerted when: ● Your children get home from school ● You left the house and forgot to arm the system ● The cleaner or housekeeper arrives and leaves ● The garage door is left open ● The pet sitter arrives ● Your thermostat setting is adjusted ● Your system is disarmed ● Someone attempts to log into your account ● And more! With a legacy of legendary service and protection, A3 Smart Home is the trusted automation and security solution that is reliable, affordable and connected with: Always-on connection- our dedicated cellular connection keeps your home or business secure - even if your internet, power or phone line is down Total, smart control - from our simple app that allows you to control every aspect from any device, anywhere Trusted solutions - our 24/7 professional monitoring is backed by a legacy of service and protection Built-in safeguards - Set notifications and rules for the things that matter most.
Sunnova
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.
- Manage solar, storage, and EV devices
- View energy performance (hourly, daily, monthly)
- Optimize home energy usage
- Centralized energy ecosystem management
- Control Sunnova Adaptive Home™
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The Sunnova App puts homeowners in control of their home energy by combining modern energy appliances, including solar, storage, and electric vehicles, in one, convenient app. Users can manage their devices; view hourly, daily, and monthly performance; and discover new ways to optimize their home. As the central place for managing a new kind of home energy ecosystem, the Sunnova app enables homeowners to manage and optimize their Sunnova Adaptive Home™.
Screenshots
Verdict
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.
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.
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 25, 2026 and October 22, 2026 respectively.
| Parameter | A3 Smart Home | Sunnova |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (1.8K ratings) — better | 3.9 (857 ratings) |
| Positive reviews | 28.8% of reviews — better | 6.3% of reviews |
| Number of ratings | 1.8K — better | 857 |
| Update frequency | Every 2 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, Apple Watch — better | iPhone, iPod |
| Requires iOS | 17.0 | 15.1 — better |
| Further details — not scored | ||
| Size | 387 MB | 87 MB |
| Age rating | 4+ | 17+ |
| Developer | A3 Smart Home LP | Sunnova Energy Corp |
Customer experience
A3 Smart Home
Sunnova
Bugs and requests
A3 Smart Home
Not enough reviews yet to summarise bugs or requests.
Sunnova
Reported bugs
3 issues- App freezes on startup
- Incorrect or missing production data
- Billing information not updating properly
Requested features
3 requests- Custom date range for production data
- Real-time energy usage and generation data
- Ability to view individual panel performance
In-app purchases
A3 Smart Home
No in-app purchases
Sunnova
No in-app purchases









