# Bluon HVAC vs Lennox Smart Tech

The clearest difference is review sentiment: Bluon HVAC at 55% against Lennox Smart Tech's 0%. Bluon HVAC also leads on ratings volume (4.5K vs 60) and rating (4.8 vs 4.5). Lennox Smart Tech's advantage is ads (none vs shown) and monetization model (free vs ad-supported). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Bluon HVAC holds the better App Store score, 4.8 against 4.5. That said, the two scores are not equally well evidenced: Bluon HVAC has 4.5K ratings behind it against 60, so its average is the more settled of the two. Written reviews point the same way: 55% of Bluon HVAC's written reviews are positive against 0% of Lennox Smart Tech's.

Bluon HVAC ships an update monthly, Lennox Smart Tech every 2 months. The most recent releases landed on October 24, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | Bluon HVAC | Lennox Smart Tech |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (4.5K ratings)](https://appshunter.io/ios/app/bluon-hvac/id1357521880/reviews)** | [4.5 (60 ratings)](https://appshunter.io/ios/app/lennox-smart-tech/id6443907644/reviews) |
| Number of ratings | **4.5K** | 60 |
| Positive reviews | **54.6% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Monthly** | Every 2 months |
| Monetization | Ad-supported | **Free** |
| Size | 170 MB | 98 MB |
| Requires iOS | **15.1** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Bluon, Inc.](https://appshunter.io/developer/1357521879) | [Lennox Industries](https://appshunter.io/developer/355049651) |

## What reviewers say

### Bluon HVAC

[App page](https://appshunter.io/ios/app/bluon-hvac/id1357521880)

Access a vast database of HVAC models, manuals, and part lists to speed up your work. Utilize an AI-powered troubleshooting tool or connect with experienced technicians for real-time support.

**Highlights:** 500,000+ HVAC unit database, Manuals and part lists, AI troubleshooting tool (MasterMechanic), Live support from veteran techs, HVAC industry upgrade tools

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

**In-app purchases:** none

**What reviewers like**

- 🤖 Helpful tech support
- 💯 Comprehensive database of manuals and information
- 🛠️ Useful tools and calculators
- 🤝 Great customer service

**What reviewers complain about**

- 💰 Paywall for advanced features
- 🔒 Limited access without company account
- 🔍 Missing manuals for some equipment models
- 🗣️ Removal of helpful forums

**Reported bugs**

- Login/password reset issues
- Frequent crashes or loading problems

**Requested features**

- Individual technician subscription option
- More comprehensive coverage of HVAC equipment models
- Ability to access full manuals without restrictions


### 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 Bluon HVAC free?

Bluon HVAC 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, Bluon HVAC or Lennox Smart Tech?

Bluon HVAC is rated higher. Bluon HVAC averages 4.8 out of 5 from 4.5K ratings, while Lennox Smart Tech averages 4.5 from 60 ratings.

### Do Bluon HVAC or Lennox Smart Tech have ads?

Bluon HVAC shows ads; Lennox Smart Tech does not.

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

Bluon HVAC ships an update monthly, and Lennox Smart Tech every 2 months. Most recently, Bluon HVAC was updated on October 24, 2026 and Lennox Smart Tech on October 22, 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.*