# Ruud vs Lennox Smart Tech

Ruud and Lennox Smart Tech both sit at 4.6 stars, but that hides the real split: 50% of Ruud's written reviews are positive against 0% of Lennox Smart Tech's. Ruud also leads on ratings volume (1.1K vs 60). On price, rating, update cadence 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.

On the App Store both sit at effectively the same score — 4.6 for Ruud against 4.5 for Lennox Smart Tech. That said, the two scores are not equally well evidenced: Ruud has 1.1K ratings behind it against 60, so its average is the more settled of the two. Written reviews are what separate them: 50% of Ruud's written reviews are positive against 0% of Lennox Smart Tech's.

Ruud ships an update monthly, Lennox Smart Tech every 2 months. The most recent releases landed on September 24, 2026 and August 15, 2026 respectively.

## The numbers

| Metric | Ruud | Lennox Smart Tech |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (1.1K ratings)](https://appshunter.io/ios/app/ruud/id1608918835/reviews)** | [4.5 (60 ratings)](https://appshunter.io/ios/app/lennox-smart-tech/id6443907644/reviews) |
| Number of ratings | **1.1K** | 60 |
| Positive reviews | **50.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 2 months |
| Monetization | Free | Free |
| Size | 112 MB | 98 MB |
| Requires iOS | 16.0 | 16.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Rheem Manufacturing Company](https://appshunter.io/developer/853793269) | [Lennox Industries](https://appshunter.io/developer/355049651) |

## What reviewers say

### Ruud

[App page](https://appshunter.io/ios/app/ruud/id1608918835)

This app streamlines HVAC installation, service, and support for contractors. It offers Bluetooth connectivity for system setup and troubleshooting, along with access to product information, warranty tracking, and dealer locators.

**Highlights:** Bluetooth setup and troubleshooting, System operating parameter monitoring, Alarm diagnosis and history, Access installation instructions and manuals, Track warranty information, Locate retailers and distributors, Find rebate and financing information

**Features:** 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 Ruud free?

Ruud 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, Ruud or Lennox Smart Tech?

Ruud is rated higher. Ruud averages 4.6 out of 5 from 1.1K ratings, while Lennox Smart Tech averages 4.5 from 60 ratings.

### Do Ruud or Lennox Smart Tech have ads?

Neither Ruud nor Lennox Smart Tech shows ads.

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

Ruud ships an update monthly, and Lennox Smart Tech every 2 months. Most recently, Ruud was updated on September 24, 2026 and Lennox Smart Tech on August 15, 2026.

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