Comfort Sync vs Lennox Smart Tech
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Comfort Sync
Control your home's temperature remotely from your iOS device. Adjust heating and cooling settings, activate energy-saving modes, and ensure your home is comfortable before you arrive.
- Remote temperature adjustment
- Select heating or cooling modes
- Choose system programs
- Energy-saving away mode
- Fan control (always on/circulate)
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Adjust your home’s temperature anytime, anywhere from your iPhone/iPad/iPod Touch with the Comfort Sync mobile app! Control the temperature at home using the intuitive temperature dials from anywhere in the world: on the beach, on the slopes, or even from the couch. Already in bed but want to adjust the temperature? No problem! The Comfort Sync app is there to adjust your home’s comfort without requiring you to leave that comfy bed. Leave the house and forget to dial back the thermostat? Simply start the app and use the one-touch away mode to save energy the entire time you are gone. Cancel the away mode before you get back to return to a perfectly comfortable home. You must own a Comfort Sync thermostat to use the Comfort Sync app. The Comfort Sync thermostat must also be connected to your home’s Wi-Fi router before the app can control the settings. For more information about the Comfort Sync thermostat or for help connecting to your wireless network, visit www.mycomfortsync.com With the Comfort Sync app you will have the ability to: •Adjust the temperature from anywhere •Change whether your system should heat or cool your home •Select the program you wish to run •Put the system into an energy savings away mode when no one is home •Select your fan to always run (ON) or come on occasionally (circulate)
Lennox Smart Tech
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.
- Install and service home comfort systems
- Test and run diagnostics remotely
- Adjust system settings from smartphone
- Compatible with Lennox S40/L40/M40/E40 Smart Thermostats
- Direct smartphone control
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With the Lennox Smart Tech App, you'll have the latest technology to more quickly and easily install and service a fully communicating home comfort system with the Lennox S40/L40/M40/E40 Smart Thermostat. You can reliably run tests, diagnostics, and change system settings directly from your smartphone without the back and forth from equipment to thermostat.
Screenshots
Verdict
The clearest difference is rating: Lennox Smart Tech at 4.5 against Comfort Sync's 1.7. Lennox Smart Tech also leads on update cadence (every 2 months vs every 8 months). Comfort Sync's advantage is iOS requirement (6.0 vs 16.0). On price, review sentiment, ratings volume and ads 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.
Lennox Smart Tech holds the better App Store score, 4.5 against 1.7. Both are backed by a comparable volume of ratings — 77 and 60 respectively. Written reviews complicate that: 5% of Comfort Sync's written reviews are positive against 0% of Lennox Smart Tech's, so the app with the better star average is not the one people write more warmly about.
Comfort Sync ships an update every 8 months, Lennox Smart Tech every 2 months. Both last shipped on October 7, 2026.
| Parameter | Comfort Sync | Lennox Smart Tech |
|---|---|---|
| Price | Free | Free |
| Rating | 1.7 (77 ratings) | 4.5 (60 ratings) — better |
| Positive reviews | 4.6% of reviews — better | 0.0% of reviews |
| Number of ratings | 77 — better | 60 |
| Update frequency | Every 8 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 6.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 12 MB | 98 MB |
| Age rating | 4+ | 4+ |
| Developer | Allied Air Enterprises inc. | Lennox Industries |
Customer experience
Comfort Sync
Lennox Smart Tech
In-app purchases
Comfort Sync
No in-app purchases
Lennox Smart Tech
No in-app purchases
Questions
Is Comfort Sync free?
Is Lennox Smart Tech free?
Which has better reviews, Comfort Sync or Lennox Smart Tech?
Do Comfort Sync or Lennox Smart Tech have ads?
Which is updated more often, Comfort Sync or Lennox Smart Tech?
Other comparisons
