Comfort Sync vs CORE Service
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)
CORE Service
This app provides a wireless interface for commercial HVAC technicians to control and service specific Lennox rooftop units. It offers guided setup, enhanced testing, and parameter configuration to streamline the service process.
- Wireless mobile service app
- Guided setup with progress indicators
- Enhanced test functionality
- Real-time sensor readings and trending
- Parameter configuration
- Exportable setup summaries
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This app is the interface for the Lennox® CORE Unit Controller in Model L (L*M), Enlight (L*T), Xion (L*X) and Strategos (S*H) Commercial Rooftop Units. You must be within 25ft of a unit to connect and utilize this app. The Lennox® CORE Control System reinvents the service process in the palm of your hand with a wireless mobile service app, making setup and service faster than ever before. This app is intended for commercial HVAC service technicians to interface with CORE Unit Controller equipped unitary packaged rooftop units. App Features: - Guided Setup with progress indicators, detailed help, and exportable summaries drive simple and trouble-free setup, reducing commissioning times over similar systems. - Enhanced Test Functionality provides real-time sensor readings, trending, and reports that enable easy troubleshooting. - Ability to set and configure parameters of the CORE Control System drive tailored sequences of operation and make the CORE Unit Controller the most flexible Lennox has to offer.
Screenshots
Verdict
The clearest difference is rating: CORE Service at 3.6 against Comfort Sync's 1.7. CORE Service also leads on update cadence (every 3 months vs every 8 months). Comfort Sync's advantage is ratings volume (77 vs 19) and iOS requirement (6.0 vs 15.6). On price, review sentiment, ads and in-app purchases 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.
CORE Service holds the better App Store score, 3.6 against 1.7. Both are backed by a comparable volume of ratings — 77 and 19 respectively. Written reviews complicate that: 5% of Comfort Sync's written reviews are positive against 0% of CORE Service'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, CORE Service every 3 months. Both last shipped on October 7, 2026.
| Parameter | Comfort Sync | CORE Service |
|---|---|---|
| Price | Free | Free |
| Rating | 1.7 (77 ratings) | 3.6 (19 ratings) — better |
| Positive reviews | 4.6% of reviews — better | 0.0% of reviews |
| Number of ratings | 77 — better | 19 |
| Update frequency | Every 8 months | Every 3 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 6.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 12 MB | 47 MB |
| Age rating | 4+ | 4+ |
| Developer | Allied Air Enterprises inc. | Lennox Industries |
Customer experience
Comfort Sync
CORE Service
In-app purchases
Comfort Sync
No in-app purchases
CORE Service
No in-app purchases
Questions
Is Comfort Sync free?
Is CORE Service free?
Which has better reviews, Comfort Sync or CORE Service?
Do Comfort Sync or CORE Service have ads?
Which is updated more often, Comfort Sync or CORE Service?
Other comparisons
