Comparison

iCOMM Connectivity vs Comfort Link

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

Head to head
About

iCOMM Connectivity

Remotely manage compatible water heaters with this app. Monitor temperature, operating modes, and receive diagnostic notifications. Optimize energy usage by aligning with utility programs.

Highlights
  • Remote water heater management
  • Temperature and mode control
  • Diagnostic fault notifications
  • Utility program alignment
  • Easy setup process
Read full description

With options to control temperature and operating mode, the iCOMM™ Mobile App is designed for: A. O. Smith, State, American, Lochinvar, and Reliance water heaters. It features the iCOMM™ connectivity platform, the latest technology for remote water heater management. Through an easy setup process, connect all your iCOMM™ enabled water heaters to the app. Once connected, you’ll gain access to diagnostic fault notifications, settings for your water heaters and much more. Designed for Homeowners & Professionals iCOMM™ Connectivity Platform Stay connected to your water heater. Monitor temperature, schedules and more with peace of mind and total control. Operation Mode Choose your ideal operating mode, depending on how you use your water heater. Demand Response and Time-of-Use Alignment Align your water heater to your utility company’s Demand Response or Time-of-Use programs rate plans through the app to save energy.

About

Comfort Link

Control your home's heating and water heater remotely via a smartphone app or voice commands. Monitor energy usage, receive alerts for malfunctions, and benefit from remote assistance to ensure comfort and optimize consumption.

Highlights
  • Remote temperature control
  • Voice command integration
  • Energy consumption reports
  • Malfunction alerts
  • Remote service assistance
  • Weekly scheduling
Features
Read full description

With Comfort Link you manage your home heating and water heater. Would you like to be able to set your home or water temperature anytime, anywhere, with a simple touch? With Comfort Link you can control your boiler, heat pump, hybrid system or water heater in a simple and intuitive way through the app or your voice. By connecting your product you can check energy reports, save up to 25% and get advice on how to optimise your consumption habits*. More benefits for you, more benefits for the planet! If the product malfunctions, the app alerts you immediately. You'll never have a cold home or shower again! Furthermore, with Comfort Link**, your service centre can provide 24/7 assistance, monitor the product and intervene to solve any problems, even remotely! *For heating: comparison between a conventional boiler without programmable thermostat or with constant temperature programming and a condensing boiler with automatic mode, external sensors and control through the Comfort Link app. The savings forecast is based on the average annual consumption for a single-family house of 100 square metres with energy class F radiators located in Milan Comparison between a mechanical round electric water heater with 80 l capacity always on and a Velis EVO Wi-Fi or Lydos Wi-Fi device with 80 l capacity with weekly scheduling thanks to the Comfort Link app. Use case: 4 showers a day, 2 in the morning and 2 in the afternoon. PLUS 8% as declared in 'Communication from the Commission to the European Parliament, the Council, the European Economic and Social Committee and the Committee of the Regions'. Brussels July 2015 ** Paid service available only for heating products

Screenshots

iCOMM Connectivity4 screens
Comfort Link4 screens

Verdict

The call

The clearest difference is rating: Comfort Link at 2.1 against iCOMM Connectivity's 1.2. Comfort Link also leads on update cadence (monthly vs every 3 months) and review sentiment (16% vs 3%). iCOMM Connectivity's advantage is ratings volume (400 vs 25). On price, ads, in-app purchases and monetization model 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

Comfort Link holds the better App Store score, 2.1 against 1.2. That said, the two scores are not equally well evidenced: iCOMM Connectivity has 400 ratings behind it against 25, so its average is the more settled of the two. Written reviews point the same way: 3% of iCOMM Connectivity's written reviews are positive against 16% of Comfort Link's.

UpkeepUpdate frequency

iCOMM Connectivity ships an update every 3 months, Comfort Link monthly. The most recent releases landed on November 7, 2026 and November 3, 2026 respectively.

Scorecard5 real differences · 5 level
iCOMM Connectivity versus Comfort Link: the parameters behind the verdict, then further details
ParameteriCOMM ConnectivityComfort Link
PriceFreeFree
Rating1.2 (400 ratings)2.1 (25 ratings) — better
Positive reviews3.2% of reviews15.8% of reviews — better
Number of ratings400 — better25
Update frequencyEvery 3 monthsMonthly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.113.0 — better
Further details — not scored
Size33 MB110 MB
Age rating4+4+
DeveloperA. O. SmithAriston SpA

Customer experience

iCOMM Connectivity

All ratings213 ratings
Positive2.8%
Neutral2.8%
Negative94.4%
Written reviews277 reviews
Positive3.2%
Neutral3.2%
Negative93.5%

Comfort Link

All ratings24 ratings
Positive25.0%
Neutral12.5%
Negative62.5%
Written reviews19 reviews
Positive15.8%
Neutral10.5%
Negative73.7%

Bugs and requests

iCOMM Connectivity

Reported bugs

19 issues
  • App loses water heater registration without warning
  • QR code scanner fails to recognize valid codes
  • Manual serial number entry rejected despite correct input
  • Session expires within 15-30 seconds of login
  • App crashes when attempting to set schedules
Show 14 more
  • Service outage messages persist for weeks
  • App forgets user credentials between sessions
  • Bluetooth connection fails despite device visibility
  • Graph/trend plotting broken after updates
  • Hot water availability gauge displays incorrect information
  • App freezes on splash screen with no error message
  • Temperature changes in app don't reflect on actual heater
  • Dirty air filter alerts don't clear after cleaning
  • App doesn't update when switching between other applications
  • Registration process fails with 'unexpected error' messages
  • App incompatible with 5GHz WiFi networks
  • Latest version broke daily usage graph functionality
  • Temperature range artificially lowered without user consent
  • App won't open after iOS/system updates

Requested features

17 requests
  • Real-time current water temperature display
  • Hourly energy usage breakdown (not just daily/monthly)
  • Simple on/off scheduling by time of day
  • Temperature scheduling for specific times
  • Data export capability
Show 12 more
  • Persistent login sessions without forced logouts
  • Instant power consumption readings
  • Estimated time to reach target temperature
  • Leak detection alerts and notifications
  • Integration with smart home platforms (Apple Home, SmartThings)
  • Better QR code scanning with modern camera support
  • In-app contact/support messaging
  • Ability to control heater without physical access for setup
  • Comparison of usage across different time periods
  • Detailed telemetry and diagnostic information
  • Automatic schedule adjustments based on utility rates
  • Current heating element status display

Comfort Link

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

iCOMM Connectivity

No in-app purchases

None

Comfort Link

No in-app purchases

Questions

Is iCOMM Connectivity free?
iCOMM Connectivity is free to download, with no in-app purchases.
Is Comfort Link free?
Comfort Link is free to download, with no in-app purchases.
Which has better reviews, iCOMM Connectivity or Comfort Link?
Comfort Link is rated higher. iCOMM Connectivity averages 1.2 out of 5 from 400 ratings, while Comfort Link averages 2.1 from 25 ratings.
Do iCOMM Connectivity or Comfort Link have ads?
Neither iCOMM Connectivity nor Comfort Link shows ads.
Which is updated more often, iCOMM Connectivity or Comfort Link?
iCOMM Connectivity ships an update every 3 months, and Comfort Link monthly. Most recently, iCOMM Connectivity was updated on November 7, 2026 and Comfort Link on November 3, 2026.

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