Comparison

A3 Smart Home vs Sunnova

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • Energy management
  • System control
  • Customizable scheduling
  • Mobile notifications
  • Video surveillance
  • Event history logging
Features
Read full description

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.

About

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.

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
Read full description

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

A3 Smart Home4 screens
Sunnova4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard4 real differences · 6 level
A3 Smart Home versus Sunnova: the parameters behind the verdict, then further details
ParameterA3 Smart HomeSunnova
PriceFreeFree
Rating4.6 (1.8K ratings) — better3.9 (857 ratings)
Positive reviews28.8% of reviews — better6.3% of reviews
Number of ratings1.8K — better857
Update frequencyEvery 2 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, Apple Watch — betteriPhone, iPod
Requires iOS17.015.1 — better
Further details — not scored
Size387 MB87 MB
Age rating4+17+
DeveloperA3 Smart Home LPSunnova Energy Corp

Customer experience

A3 Smart Home

All ratings1,761 ratings
Positive89.5%
Neutral3.0%
Negative7.6%
Written reviews111 reviews
Positive28.8%
Neutral17.1%
Negative54.1%

Sunnova

All ratings833 ratings
Positive73.2%
Neutral1.3%
Negative25.5%
Written reviews144 reviews
Positive6.3%
Neutral2.8%
Negative91.0%

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

None

A3 Smart Home

No in-app purchases

None

Sunnova

No in-app purchases

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 25, 2026 and Sunnova on October 22, 2026.

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