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Best Lennox S40 Smart Thermostat Apps

250+ iOS apps curated and reviewed

3.3 avg rating
20 free apps
Updated October 2026

With an average user rating of 3.3★, the lennox s40 smart thermostat category is one of the App Store's strongest. Browse all 250+ apps we track, sorted so the most loved ones surface first.

Compare top Lennox S40 Smart Thermostat Apps (October 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Lennox HomeLennox HomeFree4.7★ (49K)NoNoNov 2026
2(S30/E30/M30) iComfort T-Stat(S30/E30/M30) iComfort T-StatFree4.7★ (45K)NoNoNov 2026
3Lennox Smart TechLennox Smart TechFree4.5★ (60)NoNoOct 2026
4Total Connect ComfortTotal Connect ComfortFree4.3★ (76K)NoNoNov 2026
5Trane® HomeTrane® HomeFree4.8★ (155K)NoNoNov 2026
6Lennox iComfort Wi-FiLennox iComfort Wi-FiFree1.7★ (387)NoNoOct 2026
7SensiSensiFree4.6★ (247K)NoNoNov 2026
8LennoxLennoxFree1.0★ (15)NoNoAug 2026

Top Picks for Lennox S40 Smart Thermostat

Lennox Home#1

Lennox Home by Lennox Industries

Mobile Control & Monitor
Editor's Choice
🔧 Utilities
4.7😞(49K ratings)
Free
Lennox Home screenshot 1
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Lennox Home screenshot 6

Remotely manage your Lennox smart home devices, including thermostats, mini-splits, and water heaters. Adjust temperature, set schedules, and monitor air quality from anywhere. Requires compatible Lennox smart home products connected to Wi-Fi.

What We Love

  • 🚀 Takes time to learn
  • 👍 Weather forecast display
  • 👍 Alexa integration
  • 👍 Robust system features

Room to Improve

  • 🐛 Unreliable device
  • 🐛 Intermittent connectivity issues
  • 👎 Disappointing app experience
  • 👎 Lacking HomeKit support
  • 👎 Inaccurate temperature readings
  • 👎 Complicated setup and navigation
(S30/E30/M30) iComfort T-Stat#2

(S30/E30/M30) iComfort T-Stat by Lennox Industries

Strong Contender
🔧 Utilities
4.7😐(45K ratings)
Free
(S30/E30/M30) iComfort T-Stat screenshot 1
(S30/E30/M30) iComfort T-Stat screenshot 2
(S30/E30/M30) iComfort T-Stat screenshot 3
(S30/E30/M30) iComfort T-Stat screenshot 4
(S30/E30/M30) iComfort T-Stat screenshot 5
(S30/E30/M30) iComfort T-Stat screenshot 6

Control your home's HVAC system remotely with this app, allowing you to adjust temperatures, set schedules, and monitor air quality. It offers smart features like location-based temperature adjustments and advanced warnings for potential system issues.

What We Love

  • 🚀 Remote control and monitoring
  • 🔧 Flexible thermostat settings
  • 📊 Detailed energy usage reporting
  • 🛠️ Reliable HVAC system performance

Room to Improve

  • 🐛 Connectivity issues and unreliable app
  • 🔍 Limited functionality compared to competitors
  • 🕰️ Slow app response times
  • 🤔 Unintuitive user interface
Lennox Smart Tech#3

Lennox Smart Tech by Lennox Industries

Mobile Service & Installation
Worth Considering
🔧 Utilities
4.5(60 ratings)
Free
Lennox Smart Tech screenshot 1
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Streamline the installation and servicing of compatible home comfort systems. This app allows for remote testing, diagnostics, and system setting adjustments directly from a smartphone, reducing the need to physically interact with equipment.

More Lennox S40 Smart Thermostat apps to explore

FAQ about Lennox S40 Smart Thermostat

What are the best lennox s40 smart thermostat apps for iPhone?
Lennox Home tops our lennox s40 smart thermostat apps ranking as of October 2026, with a 4.7-star average from 49K App Store ratings, and it's free to download.
Yes — 20 of the top lennox s40 smart thermostat apps we rank are free to download, including Lennox Home and (S30/E30/M30) iComfort T-Stat.
Lennox Home has no ads and has no in-app purchases, according to its App Store listing as of October 2026.
We track 250+ lennox s40 smart thermostat apps on the iOS App Store as of October 2026, ranked by rating, recency, and analysis of real user reviews.

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