iCOMM Connectivity vs Rheem
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Remote water heater management
- Temperature and mode control
- Diagnostic fault notifications
- Utility program alignment
- Easy setup process
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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.
Rheem
This app streamlines HVAC installation and service for contractors. It offers Bluetooth connectivity for system setup and troubleshooting, along with comprehensive support for product information, warranty tracking, and locating resources.
- Bluetooth setup and troubleshooting
- System monitoring and status checks
- Alarm diagnosis and history
- Parts replacement guidance
- Access to manuals and tech sheets
- Warranty tracking and certificate sharing
- Retailer and distributor locator
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We’ve redesigned Rheem for Contractors to offer the industry’s most powerful, intuitive, and easy-to-use app. Whether you’re on a residential service call or installing 40 units at a major site, the free Rheem Contractor app’s Bluetooth® capability – paired with an enabled HVAC system -- makes set-up and troubleshooting simpler than ever. With Rheem for Contractors and eligible air systems, you can easily: Install - Set up systems quickly and easily with the new Bluetooth® setup - Monitor operating parameters from your phone while charging outdoor units - Verify system setup with access to system operating status - Quickly check for alarms Service - Diagnose active alarms and alarm history - Check system operating status - Easy step-by-step parts replacement and system setup The Rheem for Contractors app also offers powerful support for all of our air and water products, with a new Product Technical Support design that is easier to use and more accurate than ever: - Access installation instructions - Search parts lists - Download manuals - View tech sheets - Research consumer literature Track Warranty information - Scan and confirm model and ownership details - Check warranty status and share HVAC systems warranty certificate Locate - Look up retailers - Look up distributors Research - Find up-to-date rebate information - Research financing options - Offer extended warranty - Confirm AHRI information and certification for HVAC systems
Screenshots
Verdict
The clearest difference is rating: Rheem at 4.6 against iCOMM Connectivity's 1.2. Rheem also leads on review sentiment (40% vs 3%) and update cadence (monthly vs every 3 months). iCOMM Connectivity's advantage is device support (3 vs 1). 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Rheem holds the better App Store score, 4.6 against 1.2. Both are backed by a comparable volume of ratings — 398 and 1.8K respectively. Written reviews point the same way: 3% of iCOMM Connectivity's written reviews are positive against 40% of Rheem's.
iCOMM Connectivity ships an update every 3 months, Rheem monthly. The most recent releases landed on October 25, 2026 and October 31, 2026 respectively.
| Parameter | iCOMM Connectivity | Rheem |
|---|---|---|
| Price | Free | Free |
| Rating | 1.2 (398 ratings) | 4.6 (1.8K ratings) — better |
| Positive reviews | 3.2% of reviews | 40.0% of reviews — better |
| Number of ratings | 398 | 1.8K — better |
| Update frequency | Every 3 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.1 — better | 16.0 |
| Further details — not scored | ||
| Size | 33 MB | 109 MB |
| Age rating | 4+ | 4+ |
| Developer | A. O. Smith | Rheem Manufacturing Company |
Customer experience
iCOMM Connectivity
Rheem
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 moreShow fewer
- 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 moreShow fewer
- 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
Rheem
Not enough reviews yet to summarise bugs or requests.
In-app purchases
iCOMM Connectivity
No in-app purchases
Rheem
No in-app purchases
Questions
Is iCOMM Connectivity free?
Is Rheem free?
Which has better reviews, iCOMM Connectivity or Rheem?
Do iCOMM Connectivity or Rheem have ads?
Which is updated more often, iCOMM Connectivity or Rheem?
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