Comparison

Kidde vs Home Assistant

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

Head to head
About

Kidde

This app connects to smart home safety devices, providing real-time alerts for smoke, CO, air quality, and water leaks. It offers features like Smart Hush, remote notifications to loved ones, and advanced indoor air quality monitoring through a subscription service.

Highlights
  • Real-time alarm notifications
  • Smart Hush functionality
  • QR code setup for Wi-Fi connection
  • Device replacement notifications
  • Remote notifications to friends/family
  • Advanced Indoor Air Quality (IAQ) monitoring
  • Mold Risk Analysis
Features
Read full description

Step into the future with Kidde Smart Home Safety – where the intelligence of modern homes meets cutting-edge protection. The Kidde app seamlessly integrates with your smart home safety devices, delivering real-time alerts, Smart Hush® functionality, and more, all at your fingertips. Explore the Tech-Savvy Features: - Receive instant alarm notifications for smoke, carbon monoxide, indoor air quality issues, or water leaks. - Effortlessly set up alarms by scanning the QR code on the product, connected to your home Wi-Fi 2.4GHz network. - Easily test your alarm's functionality when you are at home. - Stay informed with notifications for device replacements. - Notify friends and family if hazards are detected when you're away. Unlock Advanced Home Health - Elevate Your IAQ Experience: Introducing Advanced Home Health, an exclusive indoor air quality subscription that seamlessly integrates premium features into your IAQ devices. Immerse yourself in the futuristic experience of our revamped IAQ dashboard, featuring a sleek design and a cutting-edge interface designed for tech-savvy subscribers. Subscription perks include: - Advanced Mold Risk Analysis - Thermal Comfort readings - Weekly air quality reports covering temperature, humidity, TVOC, Mold Risk, and Thermal Comfort. - Enjoy a 10% discount on ShopKidde.com. Discover Smart Devices: - Smoke + Carbon Monoxide Alarm with smart features – Double the detection for enhanced safety. - Smoke + Carbon Monoxide Alarm with Indoor Air Quality Monitor – An industry first, combining smoke and CO detection with IAQ monitoring. - Carbon Monoxide Alarm with Indoor Air Quality Monitor – Easy plug-in operation for reliable detection. - Water Leak + Freeze Detector – Early detection to prevent damage. - RemoteLync Camera (Sunsetting on January 7, 2024) – A cordless, Wi-Fi-enabled security camera capturing clips and providing alerts. Embrace the future of home safety with Kidde Smart Home Protection – where technology meets peace of mind. Terms of Use: https://help.kidde.com/hc/en/6-kidde/faq/589-terms-of-service/?l=en

About

Home Assistant

Control your entire smart home from one app, locally and privately. Automate devices, receive notifications, and manage your home's data securely. Integrates with thousands of smart devices and open standards.

Highlights
  • Control entire home from one app
  • Discover and configure new devices
  • Automate device actions
  • Local data privacy
  • Connect to open standards (Z-Wave, Zigbee, Matter)
  • Remote access via Home Assistant Cloud
  • Location-based automation
Features
Read full description

The Home Assistant Companion app allows you to access your Home Assistant instance on the go. Home Assistant is the smart home solution focused on privacy, choice, and sustainability. It runs locally in your home via a device like the Home Assistant Green or Raspberry Pi. This app connects to all the most powerful features of Home Assistant, - One app to control the whole home - Home Assistant is compatible with the biggest brands in the smart home, connecting to thousands of smart devices and services. - Discover automatically and quickly configure new devices - such as Philips Hue, Sonos, and IKEA Tradfri. - Automate everything - Make all the devices in your home work in harmony - have your lights dim when you start watching a movie, or turn off your heat when you’re away from home. - Keep your home’s data in the home - use it privately to see past trends and averages. - Connect to open standards with hardware add-ons - including Z-Wave, Zigbee, Matter, Thread, and Bluetooth. - Connect anywhere - If you would like to access this app while away from home, the most secure and simple way to get started is Home Assistant Cloud. The app unlocks your smartphone or tablet as a home automation tool. - Securely share your location, using it to automate heating, security, and so much more. - Get notifications on what's happening in your home, from detecting leaks to doors left open, you have full control over what it tells you. - Carplay functionality lets you open a garage or disable the security system from the dash of your car. - Build your own widgets to control any device in your home with a tap. - Integrate Home Assistant's functionality into Shortcuts, for example have your phone’s morning alarm turn on the coffee machine. - Apple Watch compatibility can show your home's temperature on a watch face or quickly activate devices. - Text or talk to your local voice assistant on your device. - Mac compatibility allows you to control your home from your desktop, but also to share data to build automation, like having your streaming lights turn on when your camera is active. Join the over 1 million users and empower your home with better privacy, choice and sustainability. Compatible with: Airthings, Amazon Alexa, Amcrest, Apple HomeKit, Apple TV, ASUSWRT, August, Belink WeMo, Bluetooth, Bose SoundTouch, Broadlink, BTHome, deCONZ, Denon, Devolo, DLNA, Ecobee, Ecovacs, Ecowitt, Elgato, EZVIZ, Fritz, Fully Kiosk, GoodWe, Govee, Growatt, Hikvision, Hive, Home Connect, Homematic, HomeWizard, Honeywell, iCloud, IFTTT, IKEA Tradfri, Insteon, Jellyfin, LG Smart TVs, LIFX, Logitech Harmony, Lutron Caseta, Magic Home, Matter, MotionEye, MQTT, MusicCast, Nanoleaf, Netatmo, Nuki, OctoPrint, ONVIF, Opower, Overkiz, OwnTracks, Panasonic Viera, Philips Hue, Pi-hole, Plex, Reolink, Ring, Roborock, Roku, Samsung TVs, Sense, Sensiba, Shelly, SmartThings, SolarEdge, Sonarr, Sonos, Sony Bravia, Spotify, Steam, SwitchBot, Synology, Tado, Tasmota, Tesla Wall, Thread, Tile, TP-Link Smart Home, Tuya, UniFi, UPnP, Verisure, Vizio, Wallbox, WebRTC, WiZ, WLED, Xbox, Xiaomi BLE, Yale, Yeelight, YoLink, Z-Wave, Zigbe

Screenshots

Kidde4 screens
Home Assistant4 screens

Verdict

The call

The clearest difference is in-app purchases: Home Assistant at none against Kidde's 2. Home Assistant also leads on update cadence (every 10 days vs every 2 months) and review sentiment (54% vs 44%). Kidde's advantage is iOS requirement (14.0 vs 16.4). On price, rating, ratings volume and ads 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. Kidde sells 2 in-app purchases, starting at $1.99 per month. Home Assistant asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.7 for Kidde against 4.7 for Home Assistant. Both are backed by a comparable volume of ratings — 6.7K and 4K respectively. Written reviews are what separate them: 44% of Kidde's written reviews are positive against 54% of Home Assistant's.

UpkeepUpdate frequency

Kidde ships an update every 2 months, Home Assistant every 10 days. Both last shipped on October 15, 2026.

Scorecard5 real differences · 5 level
Kidde versus Home Assistant: the parameters behind the verdict, then further details
ParameterKiddeHome Assistant
PriceFreeFree
Rating4.7 (6.7K ratings)4.7 (4K ratings)
Positive reviews44.5% of reviews54.1% of reviews — better
Number of ratings6.7K — better4K
Update frequencyEvery 2 monthsEvery 10 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemiumFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, Mac, Apple Watch — better
Requires iOS14.0 — better16.4
Further details — not scored
Size88 MB261 MB
Age rating4+4+
DeveloperWalter Kidde Portable EquipmentNabu Casa, Inc

Customer experience

Kidde

All ratings6,671 ratings
Positive95.1%
Neutral1.7%
Negative3.1%
Written reviews218 reviews
Positive44.5%
Neutral8.7%
Negative46.8%

Home Assistant

All ratings3,967 ratings
Positive93.5%
Neutral1.6%
Negative4.9%
Written reviews510 reviews
Positive54.1%
Neutral8.6%
Negative37.3%

Bugs and requests

Kidde

Reported bugs

5 issues
  • App unable to connect to devices
  • Firmware updates failing
  • Devices going offline randomly
  • Notifications not working as expected
  • Inconsistent device naming in app

Requested features

5 requests
  • Add HomeKit support
  • Improve historical data tracking
  • Provide more detailed temperature/air quality data
  • Allow remote alarm silencing
  • Enhance app stability and usability

Home Assistant

Not enough reviews yet to summarise bugs or requests.

In-app purchases

2 purchases

Kidde

Subscriptions2
  • Advanced Home Health - Monthly1 Month trial$1.991 Month
  • Advanced Home Health - Annual1 Month trial$19.991 Year
None

Home Assistant

No in-app purchases

Questions

Is Kidde free?
Kidde is free to download, with in-app purchases available.
Is Home Assistant free?
Home Assistant is free to download, with no in-app purchases.
Which has better reviews, Kidde or Home Assistant?
Kidde and Home Assistant are both rated 4.7 out of 5 on the App Store, from 6.7K and 4K ratings respectively.
Do Kidde or Home Assistant have ads?
Neither Kidde nor Home Assistant shows ads.
Which is updated more often, Kidde or Home Assistant?
Kidde ships an update every 2 months, and Home Assistant every 10 days. Most recently, Kidde was updated on October 15, 2026 and Home Assistant on October 15, 2026.

Other comparisons