PuriFi Install vs Lennox Smart Tech
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PuriFi Install
This app streamlines the installation and setup of air and surface purification systems. It allows for quick device pairing and configuration of system settings, including indoor air quality levels by zone.
- Fast and efficient installation
- Device pairing
- System configuration
- Indoor air quality settings
- Zone-based adjustments
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The PuriFi Install app provides professional installers fast and efficient installation, configuration, and setup of PuriFi air and surface purification systems. One-click install makes it quick and easy to pair devices. Use the app to configure system settings, including indoor air quality levels by zone.
Lennox Smart Tech
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.
- 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
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With the Lennox Smart Tech App, you'll have the latest technology to more quickly and easily install and service a fully communicating home comfort system with the Lennox S40/L40/M40/E40 Smart Thermostat. You can reliably run tests, diagnostics, and change system settings directly from your smartphone without the back and forth from equipment to thermostat.
Screenshots
Verdict
The clearest difference is rating: PuriFi Install at 5.0 against Lennox Smart Tech's 4.5. PuriFi Install also leads on iOS requirement (10.0 vs 16.0). Lennox Smart Tech's advantage is ratings volume (60 vs 1). On price, update cadence, 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.
PuriFi Install 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 1, so its average is the more settled of the two.
PuriFi Install ships an update every 3 months, Lennox Smart Tech every 2 months. Both last shipped on November 3, 2026.
| Parameter | PuriFi Install | Lennox Smart Tech |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | 4.5 (60 ratings) |
| Positive reviews | — | 0.0% of reviews |
| Number of ratings | 1 | 60 — better |
| Update frequency | Every 3 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 10.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 184 MB | 98 MB |
| Age rating | 4+ | 4+ |
| Developer | Modularis, Inc. | Lennox Industries |
Customer experience
PuriFi Install
Lennox Smart Tech
In-app purchases
PuriFi Install
No in-app purchases
Lennox Smart Tech
No in-app purchases
Questions
Is PuriFi Install free?
Is Lennox Smart Tech free?
Which has better reviews, PuriFi Install or Lennox Smart Tech?
Do PuriFi Install or Lennox Smart Tech have ads?
Which is updated more often, PuriFi Install or Lennox Smart Tech?
Other comparisons
