# Comfort Sync vs Lennox Smart Tech

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.

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.

## The numbers

| Metric | Comfort Sync | Lennox Smart Tech |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.7 (77 ratings)](https://appshunter.io/ios/app/comfort-sync/id618048454/reviews) | **[4.5 (60 ratings)](https://appshunter.io/ios/app/lennox-smart-tech/id6443907644/reviews)** |
| Number of ratings | **77** | 60 |
| Positive reviews | **4.6% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 2 months** |
| Monetization | Free | Free |
| Size | 12 MB | 98 MB |
| Requires iOS | **6.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Allied Air Enterprises inc.](https://appshunter.io/developer/618048457) | [Lennox Industries](https://appshunter.io/developer/355049651) |

## What reviewers say

### Comfort Sync

[App page](https://appshunter.io/ios/app/comfort-sync/id618048454)

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.

**Highlights:** Remote temperature adjustment, Select heating or cooling modes, Choose system programs, Energy-saving away mode, Fan control (always on/circulate)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Lennox Smart Tech

[App page](https://appshunter.io/ios/app/lennox-smart-tech/id6443907644)

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.

**Highlights:** 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

**In-app purchases:** none


## Frequently asked questions

### Is Comfort Sync free?

Comfort Sync is free to download, with no in-app purchases.

### Is Lennox Smart Tech free?

Lennox Smart Tech is free to download, with no in-app purchases.

### Which has better reviews, Comfort Sync or Lennox Smart Tech?

Lennox Smart Tech is rated higher. Comfort Sync averages 1.7 out of 5 from 77 ratings, while Lennox Smart Tech averages 4.5 from 60 ratings.

### Do Comfort Sync or Lennox Smart Tech have ads?

Neither Comfort Sync nor Lennox Smart Tech shows ads.

### Which is updated more often, Comfort Sync or Lennox Smart Tech?

Comfort Sync ships an update every 8 months, and Lennox Smart Tech every 2 months. Most recently, Comfort Sync was updated on October 7, 2026 and Lennox Smart Tech on October 7, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*