iCOMM Connectivity vs Optimal°
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.
Optimal°
This app provides remote control and monitoring for a specific brand of tankless water heaters. Users can adjust temperature, track performance metrics, and receive diagnostic information for efficient hot water management.
- Set water heater output temperature
- Monitor unit activity state
- Track flow rate and energy consumption
- View inlet and outlet water temperatures
- Access diagnostics and error codes
- Enable Vacation Mode
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Control and Monitor your Optimal Opti Tankless Water Heater with the Optimal° connected app. Optimal° app allows you to control temperature, monitor performance and unit diagnostics, giving you full control of our hot water services. Optimal's patent pending ultrasonic flow sensors allow you to add your water heater to your smart home intelligence. Optimal° allows you to precisely customize how hot water is delivered to your faucets. Save money, be efficient and that's Optimal. Current App Version functionality. - Set water heater output temperature - Unit activity state (heating / not heating) - Gallons / min flow rate - Kilowatts per hour rate - Inlet Water Temperature - Outlet Water Temperature - Input Voltage - Available Flow Rate - Heater Capacity - Vacation Mode - Diagnostics / Error Code Reporting
Screenshots
Verdict
The clearest difference is review sentiment: Optimal° at 60% against iCOMM Connectivity's 3%. Optimal° also leads on rating (4.9 vs 1.3). iCOMM Connectivity's advantage is ratings volume (299 vs 7). On price, update cadence, 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.
Optimal° holds the better App Store score, 4.9 against 1.3. That said, the two scores are not equally well evidenced: iCOMM Connectivity has 299 ratings behind it against 7, 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 60% of Optimal°'s.
iCOMM Connectivity ships an update every 3 months, Optimal° every 5 months. The most recent releases landed on October 15, 2026 and September 29, 2026 respectively.
| Parameter | iCOMM Connectivity | Optimal° |
|---|---|---|
| Price | Free | Free |
| Rating | 1.3 (299 ratings) | 4.9 (7 ratings) — better |
| Positive reviews | 3.3% of reviews | 60.0% of reviews — better |
| Number of ratings | 299 — better | 7 |
| Update frequency | Every 3 months — better | Every 5 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.1 | 15.1 |
| Further details — not scored | ||
| Size | 33 MB | 19 MB |
| Age rating | 4+ | 17+ |
| Developer | A. O. Smith | Its Optimal LLC |
Customer experience
iCOMM Connectivity
Optimal°
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
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- 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
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- 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
Optimal°
Not enough reviews yet to summarise bugs or requests.
In-app purchases
iCOMM Connectivity
No in-app purchases
Optimal°
No in-app purchases
