Comparison

iCOMM Connectivity vs Netzero for Powerwall

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

Netzero for Powerwall

Automate your home energy system to maximize savings and monitor your Powerwall's health. Integrate with utility providers for dynamic pricing and receive alerts for solar or battery issues. Gain insights into energy production and use your device as a home energy dashboard.

Highlights
  • Powerwall automation and scheduling
  • Utility tariff integration
  • Solar production monitoring
  • Powerwall health alerts
  • Home energy dashboard
  • Advanced diagnostics
Features
Read full description

Increase savings with Powerwall automation and utility integrations. Connect your energy devices, monitor Powerwall health, and detect solar issues early. Advanced features require a subscription after a 30-day free trial. - Take charge of your Powerwall. Schedule charging, discharging, and backup settings. Export stored energy to the grid when export prices are highest, or before a period of cheap or free electricity. Prevent unnecessary discharge during EV charging and improve efficiency. Automate your home energy with device integrations. - Connect your EV charger, EV, and heating/cooling devices. Pre-heat or pre-cool your home when electricity is cheap, or pause EV charging and heating/cooling during outages. Supports 500+ devices across 50+ brands. - Octopus Energy users benefit from automatic Powerwall charging during Intelligent Octopus Go sessions. Supports Agile Octopus, Tibber, Amber Electric, ComEd Hourly Pricing, and Ameren Power Smart Pricing. Netzero configures Powerwall with live pricing to help cut your bills. - Receive automatic alerts for solar or battery issues. Track Powerwall capacity and degradation to stay within warranty limits. - Get daily, monthly, and yearly production estimates. Spot solar performance issues early. Use the app on your tablet or phone as an always-on home energy dashboard. - Download detailed data, view string-level solar performance, access weather data and developer tools, and enjoy ongoing feature updates. Apple Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

iCOMM Connectivity4 screens
Netzero for Powerwall4 screens

Verdict

The call

The clearest difference is review sentiment: Netzero for Powerwall at 90% against iCOMM Connectivity's 3%. Netzero for Powerwall also leads on rating (4.8 vs 1.3) and update cadence (weekly vs every 3 months). iCOMM Connectivity's advantage is in-app purchases (none vs 2). On price, ratings volume, ads and device support 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. Netzero for Powerwall sells 2 in-app purchases, starting at $6.99 per month. iCOMM Connectivity asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Netzero for Powerwall holds the better App Store score, 4.8 against 1.3. Both are backed by a comparable volume of ratings — 299 and 763 respectively. Written reviews point the same way: 3% of iCOMM Connectivity's written reviews are positive against 90% of Netzero for Powerwall's.

UpkeepUpdate frequency

iCOMM Connectivity ships an update every 3 months, Netzero for Powerwall weekly. The most recent releases landed on September 28, 2026 and September 29, 2026 respectively.

Scorecard5 real differences · 5 level
iCOMM Connectivity versus Netzero for Powerwall: the parameters behind the verdict, then further details
ParameteriCOMM ConnectivityNetzero for Powerwall
PriceFreeFree
Rating1.3 (299 ratings)4.8 (763 ratings) — better
Positive reviews3.0% of reviews90.3% of reviews — better
Number of ratings299763 — better
Update frequencyEvery 3 monthsWeekly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFreemium
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.1 — better16.4
Further details — not scored
Size33 MB60 MB
Age rating4+4+
DeveloperA. O. SmithNetzero Labs, Inc

Customer experience

iCOMM Connectivity

All ratings213 ratings
Positive2.8%
Neutral2.8%
Negative94.4%
Written reviews263 reviews
Positive3.0%
Neutral3.8%
Negative93.2%

Netzero for Powerwall

All ratings763 ratings
Positive94.8%
Neutral1.7%
Negative3.5%
Written reviews559 reviews
Positive90.3%
Neutral2.9%
Negative6.8%

User reviews

iCOMM Connectivity

From 299 App Store ratings

What we love

  • ✅ Water heater hardware itself performs well
  • 🎯 Simple temperature adjustment when working
  • 📊 Basic hot water availability gauge
  • ⚙️ Vacation mode functionality
  • 🔧 Mode switching capability

Room to improve

  • 🐛 Constant connectivity failures and service outages
  • 🔄 App repeatedly forgets registered water heater
  • ❌ Requires re-registration multiple times monthly
  • ⏱️ Frequent forced logouts and session expirations
  • 📱 QR code scanning consistently fails

Netzero for Powerwall

From 763 App Store ratings

What we love

  • 🚀 Indispensable for home energy nerds
  • 🚀 Amazing Diagnostic Tool
  • 🚀 Awesome app to extend Tesla capabilities
  • 🚀 Outstanding
  • 🚀 Great App + Great Support

Room to improve

  • 🐛 Something changed?
  • 🔧 Good but needs more tariff options
  • 🐛 May not be compatible with PW3
  • 🐛 Difficult

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

Netzero for Powerwall

Reported bugs

2 issues
  • May not be compatible with PW3
  • Diagnostic screen stays black

Requested features

2 requests
  • stop battery charging?
  • AND function on the conditionality

In-app purchases

None

iCOMM Connectivity

No in-app purchases

2 purchases

Netzero for Powerwall

Subscriptions2
  • Netzero Pro - Monthly$6.991 Month
  • Netzero Pro - Annual$69.991 Year

Questions

Is iCOMM Connectivity free?
iCOMM Connectivity is free to download, with no in-app purchases.
Is Netzero for Powerwall free?
Netzero for Powerwall is free to download, with in-app purchases available.
Which has better reviews, iCOMM Connectivity or Netzero for Powerwall?
Netzero for Powerwall is rated higher. iCOMM Connectivity averages 1.3 out of 5 from 299 ratings, while Netzero for Powerwall averages 4.8 from 763 ratings.
Do iCOMM Connectivity or Netzero for Powerwall have ads?
Neither iCOMM Connectivity nor Netzero for Powerwall shows ads.
Which is updated more often, iCOMM Connectivity or Netzero for Powerwall?
iCOMM Connectivity ships an update every 3 months, and Netzero for Powerwall weekly. Most recently, iCOMM Connectivity was updated on September 28, 2026 and Netzero for Powerwall on September 29, 2026.

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