# Lennox Smart Tech vs Cielo PRO

The clearest difference is review sentiment: Cielo PRO at 100% against Lennox Smart Tech's 0%. Cielo PRO also leads on rating (5.0 vs 4.5) and update cadence (every 3 weeks vs every 2 months). Lennox Smart Tech's advantage is ratings volume (60 vs 2). On price, ads, in-app purchases and monetization model there is nothing between them.

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

Cielo PRO holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Lennox Smart Tech has 60 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 0% of Lennox Smart Tech's written reviews are positive against 100% of Cielo PRO's.

Lennox Smart Tech ships an update every 2 months, Cielo PRO every 3 weeks. The most recent releases landed on November 11, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Lennox Smart Tech | Cielo PRO |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (60 ratings)](https://appshunter.io/ios/app/lennox-smart-tech/id6443907644/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/cielo-pro/id6757784458/reviews)** |
| Number of ratings | **60** | 2 |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 97 MB | 28 MB |
| Requires iOS | 17.0 | **16.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Lennox Industries](https://appshunter.io/developer/355049651) | [Cielo WiGle Inc.](https://appshunter.io/developer/1030282554) |

## What reviewers say

### Lennox Smart Tech

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

This app provides tools for installing and servicing smart home comfort systems. It allows users to run tests, diagnostics, and adjust system settings remotely from a smartphone.

**Highlights:** Install smart home comfort systems, Service Lennox S40/L40/M40/E40 thermostats, Run tests and diagnostics remotely, Change system settings from smartphone, Direct control without moving between equipment and thermostat

**In-app purchases:** none


### Cielo PRO

[App page](https://appshunter.io/ios/app/cielo-pro/id6757784458)

This tool empowers HVAC professionals to efficiently install smart thermostats, manage customer relationships, and enhance their business branding. It offers guided workflows, Bluetooth configuration, and AI-powered templates for quick and reliable setups.

**Highlights:** Free Pro Branding, Guided Thermostat Installation Workflow, Bluetooth-Based Configuration, AI-Powered HVAC Configuration Templates, Save Thermostat Configurations, HVAC Equipment Testing, Instant Thermostat Handoff, Customer & Workforce Management

**In-app purchases:** none


## Frequently asked questions

### Is Lennox Smart Tech free?

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

### Is Cielo PRO free?

Cielo PRO is free to download, with no in-app purchases.

### Which has better reviews, Lennox Smart Tech or Cielo PRO?

Cielo PRO is rated higher. Lennox Smart Tech averages 4.5 out of 5 from 60 ratings, while Cielo PRO averages 5.0 from 2 ratings.

### Do Lennox Smart Tech or Cielo PRO have ads?

Neither Lennox Smart Tech nor Cielo PRO shows ads.

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

Lennox Smart Tech ships an update every 2 months, and Cielo PRO every 3 weeks. Most recently, Lennox Smart Tech was updated on November 11, 2026 and Cielo PRO on November 5, 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.*