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Best State Water Heaters Apps

249+ iOS apps curated and reviewed

3.9 avg rating
20 free apps
Updated August 2026

Whether you're new to state water heaters or looking for an upgrade, our curated collection of 249+ iOS apps has something for everyone. Each app is reviewed and rated by real users, helping you make an informed decision.

Compare top State Water Heaters Apps (August 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1iCOMM ConnectivityiCOMM ConnectivityFree1.3★ (299)NoNoSep 2026
2RheemRheemFree4.6★ (1.5K)NoNoSep 2026
3Rinnai CentralRinnai CentralFree1.6★ (341)NoNoSep 2026
4Rinnai Control-r 2.0™Rinnai Control-r 2.0™Free1.4★ (898)NoNoAug 2026
5Rheem EcoNetRheem EcoNetFree4.4★ (15K)NoNoSep 2026
6Flume WaterFlume WaterFree4.7★ (1.6K)NoYesSep 2026
7Ruud EcoNetRuud EcoNetFree4.4★ (2.3K)NoNoSep 2026
8Wholesale Water HeaterWholesale Water HeaterFree5.0★ (1)NoNoMay 2026

Top Picks for State Water Heaters

iCOMM Connectivity#1

iCOMM Connectivity by A. O. Smith

Editor's Choice
🔧 Utilities
1.3😞(299 ratings)
Free
iCOMM Connectivity screenshot 1
iCOMM Connectivity screenshot 2
iCOMM Connectivity screenshot 3
iCOMM Connectivity screenshot 4
iCOMM Connectivity screenshot 5

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

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
  • 📈 Monthly energy usage tracking available

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
  • 🚫 Serial number validation errors
  • 🔌 Loses connection to device regularly
  • ⚠️ Unreliable error messages and notifications
  • 🔐 Poor password reset functionality
  • 📞 Unresponsive or non-functional customer support
  • 🌐 Backend infrastructure frequently offline
  • 💔 Misleading marketing vs. actual functionality
  • 🔄 Requires physical access to re-add heater
  • ⏳ Slow app performance and loading times
  • 🎨 Poor UI/UX design and confusing navigation
Rheem#2

Rheem by Rheem Manufacturing Company

Connect . Install . Service
Strong Contender
🔧 Utilities
4.6(1.5K ratings)
Free
Rheem screenshot 1
Rheem screenshot 2
Rheem screenshot 3
Rheem screenshot 4
Rheem screenshot 5

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.

Rinnai Central#3

Rinnai Central by Rinnai America Corp

Worth Considering
🔧 Utilities
1.6😞(341 ratings)
Free
Rinnai Central screenshot 1
Rinnai Central screenshot 2
Rinnai Central screenshot 3
Rinnai Central screenshot 4
Rinnai Central screenshot 5
Rinnai Central screenshot 6

This app connects Rinnai tankless water heater owners to their devices for temperature control and scheduling. Professional installers can use it to register appliances, perform service, access documentation, and order parts.

What We Love

  • 🚀 Works great
  • 🚀 Much improved
  • 🚀 Fantastic
  • 🚀 Working perfectly now

Room to Improve

  • 🐛 Doesn't work at all
  • 🐛 Bug in 4.3.0
  • 🐛 Awful. Just terrible
  • 🐛 Lousy App
  • 🐛 Rinnai does not care
  • 🐛 Horrible app
  • 🐛 Worst app
  • 🐛 Horrible
  • 🐛 Terrible app
  • 🐛 Total fail
  • 🐛 Crashes on launch
  • 🐛 Cannot connect to Bluetooth!
  • 🐛 Very Disappointing
  • 🐛 Bluetooth option??
  • 🐛 Broken
  • 🐛 Not good
  • 🐛 Defective app
  • 🐛 App does not work
  • 🐛 Useless APP
  • 🐛 The application does not work.
  • 🐛 Unimpressed
  • 🐛 IT DOESN'T WORK
  • 🐛 Absolute junk. Don't buy Rinnai
  • 🐛 Renders water heater useless
  • 🐛 Written by a company that cares more about advertising than functionality
  • 🐛 Won't connect.
  • 🐛 Can't even create an account
  • 🐛 App is useless
  • 🐛 Use the reset button!
  • 🐛 Buggy registration
  • 🐛 Doesn't work
  • 🐛 Worthless w/o Module 200
  • 🐛 Worst. App. Ever.
  • 🐛 Pain to troubleshoot
  • 🐛 Poor
  • 🐛 Cannot create account even
  • 🐛 Does Not know
  • 🐛 Frequently isnt in sync
  • 🐛 Doesn't work
  • 🐛 Worthless
  • 🐛 Mostly Broken, Hasn't Worked for Days
  • 🐛 Doesn't work for new models
  • 🐛 Garbage app
  • 🐛 Terrible
  • 🐛 Junk
  • 🐛 Pain to troubleshoot
  • 🐛 Poor
  • 🐛 Barely works
  • 🐛 Where's the beef?
  • 🐛 Have to buy a device to use
  • 🐛 App does not y
  • 🐛 Rarely stays connected
  • 🐛 Crap
  • 🐛 Recirculation doesn't work after latest update
  • 🐛 I can't get it to work with voiceover
  • 🐛 None of these apps have world
  • 🐛 Absolutely garbage
  • 🐛 Doesn't load on 26.1 right now

More State Water Heaters apps to explore

FAQ about State Water Heaters

What are the best state water heaters apps for iPhone?
iCOMM Connectivity tops our state water heaters apps ranking as of August 2026, with a 1.3-star average from 299 App Store ratings, and it's free to download.
Yes — 20 of the top state water heaters apps we rank are free to download, including iCOMM Connectivity and Rheem.
iCOMM Connectivity has no ads and has no in-app purchases, according to its App Store listing as of August 2026.
We track 249+ state water heaters apps on the iOS App Store as of August 2026, ranked by rating, recency, and analysis of real user reviews.
The iCOMM Connectivity app allows you to remotely manage compatible water heaters from brands like A. O. Smith, State, and American. You can monitor temperature, adjust operating modes, and receive important diagnostic fault notifications, providing peace of mind and total control over your water heater.
Key features include remote monitoring of water heater temperature and schedules, the ability to change operating modes, and receiving diagnostic fault notifications. It also supports aligning your water heater with utility company Demand Response or Time-of-Use programs to save energy.