CORE Service vs Budderfly
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CORE Service
This app provides a wireless interface for commercial HVAC technicians to control and service specific Lennox rooftop units. It offers guided setup, enhanced testing, and parameter configuration to streamline the service process.
- Wireless mobile service app
- Guided setup with progress indicators
- Enhanced test functionality
- Real-time sensor readings and trending
- Parameter configuration
- Exportable setup summaries
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This app is the interface for the Lennox® CORE Unit Controller in Model L (L*M), Enlight (L*T), Xion (L*X) and Strategos (S*H) Commercial Rooftop Units. You must be within 25ft of a unit to connect and utilize this app. The Lennox® CORE Control System reinvents the service process in the palm of your hand with a wireless mobile service app, making setup and service faster than ever before. This app is intended for commercial HVAC service technicians to interface with CORE Unit Controller equipped unitary packaged rooftop units. App Features: - Guided Setup with progress indicators, detailed help, and exportable summaries drive simple and trouble-free setup, reducing commissioning times over similar systems. - Enhanced Test Functionality provides real-time sensor readings, trending, and reports that enable easy troubleshooting. - Ability to set and configure parameters of the CORE Control System drive tailored sequences of operation and make the CORE Unit Controller the most flexible Lennox has to offer.
Budderfly
Monitor and control energy efficiency with smart devices. This app requires a valid Budderfly user account for access. It's designed for customers, contractors, and employees.
- Energy efficiency control
- Device monitoring
- User account access
- Customer, contractor, and employee use
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Control and monitor energy efficiency using Budderfly Devices and the Budderfly Mobile App. This application is intended for use by Budderfly users only with valid user accounts. This includes but is not limited to customers, contractors and employees of Budderfly, Inc. across the US and Canada. Anonymous users will not be able to use App.
Screenshots
Verdict
The clearest difference is rating: CORE Service at 3.6 against Budderfly's 3.0. CORE Service also leads on ratings volume (19 vs 6). Budderfly's advantage is update cadence (every 9 days vs every 3 months). On price, review sentiment, 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.
CORE Service holds the better App Store score, 3.6 against 3.0. Both are backed by a comparable volume of ratings — 19 and 6 respectively. Written reviews split almost evenly too, at 0% and 0% positive.
CORE Service ships an update every 3 months, Budderfly every 9 days. Both last shipped on October 24, 2026.
| Parameter | CORE Service | Budderfly |
|---|---|---|
| Price | Free | Free |
| Rating | 3.6 (19 ratings) — better | 3.0 (6 ratings) |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| Number of ratings | 19 — better | 6 |
| Update frequency | Every 3 months | Every 9 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.6 — better | 16.0 |
| Further details — not scored | ||
| Size | 47 MB | 201 MB |
| Age rating | 4+ | 4+ |
| Developer | Lennox Industries | Budderfly LLC |
Customer experience
CORE Service
Budderfly
In-app purchases
CORE Service
No in-app purchases
Budderfly
No in-app purchases
