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Best Water Heater Apps

249+ iOS apps curated and reviewed

3.9 avg rating
20 free apps
Updated September 2026

If you already know Rheem EcoNet, this is the deeper bench. 249+ water heater apps for iPhone, all reviewed and ranked by user rating, recency, and download trend as of September 2026.

Compare top Water Heater Apps (September 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Rheem EcoNetRheem EcoNetFree4.4★ (15K)NoNoSep 2026
2iCOMM ConnectivityiCOMM ConnectivityFree1.3★ (299)NoNoSep 2026
3EcoNetEcoNetFree4.4★ (13K)NoNoSep 2026
4Wholesale Water HeaterWholesale Water HeaterFree5.0★ (1)NoNoMay 2026
5Rinnai Control-r 2.0™Rinnai Control-r 2.0™Free1.4★ (898)NoNoAug 2026
6Rover WarmRover WarmFree—NoNoMay 2026
7Apparent Water HeaterApparent Water HeaterFree5.0★ (1)NoNoSep 2026
8Bock Water HeatersBock Water HeatersFree5.0★ (1)NoNoMay 2026

Top Picks for Water Heater

Rheem EcoNet#1

Rheem EcoNet by Rheem Manufacturing Company

For Homeowners: Smart AC & H2O
Editor's Choice
🔧 Utilities
4.4😞(15K ratings)
Free
Rheem EcoNet screenshot 1
Rheem EcoNet screenshot 2
Rheem EcoNet screenshot 3
Rheem EcoNet screenshot 4
Rheem EcoNet screenshot 5
Rheem EcoNet screenshot 6

Manage your home's heating, cooling, and hot water systems remotely. Optimize energy usage, set custom schedules, and receive important alerts for maintenance and system performance. This app helps homeowners save on utility bills and maintain ideal comfort levels.

What We Love

  • 🚀 Useful for monitoring energy usage
  • 👍 Improved app UI in recent update
  • 🚀 Reliable connection after update

Room to Improve

  • 🐛 Scheduling issues and unreliable
  • 🐛 Home/away mode not functioning properly
  • 🐛 Connectivity problems after app updates
  • 🐛 Clunky and unintuitive user interface
  • 🐛 Missing key information like current water temperature
iCOMM Connectivity#2

iCOMM Connectivity by A. O. Smith

Strong Contender
🔧 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
EcoNet#3

EcoNet by Rheem Manufacturing Company

For Homeowners: Smart AC & H2O
Worth Considering
🔧 Utilities
4.4😞(13K ratings)
Free
EcoNet screenshot 1
EcoNet screenshot 2
EcoNet screenshot 3
EcoNet screenshot 4
EcoNet screenshot 5
EcoNet screenshot 6

Manage your home's heating, cooling, and water heater systems remotely. Optimize energy efficiency, track consumption, and set custom schedules for comfort and savings. Receive alerts for maintenance and system updates.

What We Love

  • 🚀 Functional app
  • 📊 Useful graphs and data
  • 🔒 Resetting password options
  • 🕰️ Scheduling and vacation mode

Room to Improve

  • 🐛 Buggy and unreliable connection
  • 🚫 Inaccurate power consumption data
  • 🤔 Confusing and limited UI
  • 🔄 Inconsistent mode changes
  • 🔍 Lack of detailed information

More Water Heater apps to explore

FAQ about Water Heater

What are the best water heater apps for iPhone?
Rheem EcoNet tops our water heater apps ranking as of September 2026, with a 4.4-star average from 15K App Store ratings, and it's free to download.
Yes — 20 of the top water heater apps we rank are free to download, including Rheem EcoNet and iCOMM Connectivity.
Rheem EcoNet has no ads and has no in-app purchases, according to its App Store listing as of September 2026.
We track 249+ water heater apps on the iOS App Store as of September 2026, ranked by rating, recency, and analysis of real user reviews.
The Rheem EcoNet app provides smart control over your home's HVAC systems and water heaters from Rheem and its associated brands. It allows you to manage your home's climate and hot water remotely, monitor energy usage, and set custom schedules for optimal efficiency and comfort.
Key features include smart control for heating and cooling, monitoring of water heater performance, tracking of energy consumption with savings tips, enrollment in utility programs, custom scheduling for HVAC and water heaters, and real-time alerts for maintenance and system issues. It also offers remote access from anywhere.

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