Magnetic Tool vs Trane® Technician
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Magnetic Tool
This app helps technicians quickly test AC and DC solenoid coils. It uses your smartphone's sensors to detect magnetic fields, indicating if a coil is functioning correctly. Offers simple and advanced modes for easy or precise testing.
- Solenoid coil testing
- Magnetic field detection
- Audio and haptic feedback
- Simple and Advanced modes
- Adjustable tolerance thresholds
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Magnetic Tool is now part of the new Ref Tools app, our essential, all-in-one mobile app for air conditioning and refrigeration technicians. Ref Tools gives you access to the tools, guidance, support, and information you need—on the job and in the field. Download Ref Tools to access the latest version of Magnetic Tool. Ensuring that a solenoid valve coil is working properly, or detecting a faulty one, is an important step in many repair or installation projects. Magnetic Tool makes testing a solenoid valve coil quick and easy. Just open the app, hold your smartphone up to the solenoid coil you want to test, and watch for the wheel in the app to start spinning. If it rotates, your solenoid valve is good to go. If a solenoid valve is in a tough-to-reach space, you can also set Magnetic Tool to provide audio or haptic (or both) feedback when it detects a magnetic field. That way, you can check on a valve without seeing your screen, so you can maneuver your phone any way you need to. Magnetic Tool has two modes: Simple and Advanced. With Simple mode, all you need to do is open the app and start testing—it's that simple. Advanced mode allows you to adjust the threshold tolerances of the magnetometer, which is most often used to reduce or eliminate interference from other nearby solenoid valves. Magnetic Tool is part of the Danfoss CoolApps Toolbox, a collection of mobile apps designed to help installers and service technicians with their daily tasks. See the full collection at CoolApps.Danfoss.com. Support For app support, please use the in-app feedback function found in the app settings or send an email to coolapp@danfoss.com Engineering Tomorrow Danfoss engineers advanced technologies that enable us to build a better, smarter and more efficient tomorrow. In the world’s growing cities, we ensure the supply of fresh food and optimal comfort in our homes and offices, while meeting the need for energy-efficient infrastructure, connected systems and integrated renewable energy. Our solutions are used in such areas as refrigeration, air conditioning, heating, motor control and mobile machinery. Our innovative engineering dates back to 1933 and today, Danfoss holds market-leading positions, employing 28,000 people and serving customers in more than 100 countries. We are privately held by the founding family. Read more about us at www.danfoss.com. Terms and Conditions apply for use of the app.
Trane® Technician
This app streamlines HVAC installation, commissioning, and service for technicians and companies. It offers guided setup, remote monitoring of smart thermostats, and access to essential resources like wiring diagrams and training materials.
- Streamlined installation and commissioning
- Remote monitoring of smart thermostats
- Step-by-step guidance for technicians
- Real-time system alert monitoring
- Guided wiring diagram generation
- Access to product literature and training
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The Trane Technician (formerly Trane Diagnostics) Mobile App is specifically designed to assist Service Technicians and HVAC companies by streamlining the installation, commissioning, and service processes. By seamlessly integrating with Link Systems, Link Zoning, and Link Relay Panels, the app enhances the overall installation experience. Its user-friendly interface provides step-by-step guidance to HVAC technicians, simplifying the setup process. Moreover, it ensures secure access to customer data and enables real-time monitoring of system alerts, improving problem diagnosis efficiency. With the Dealer Remote Configuration (DRC) functionality, HVAC companies can remotely access and monitor homeowners' Link or smart thermostats, enabling proactive servicing, configuration, and diagnostic support to ensure optimal HVAC system performance. The app's Guided Installation feature simplifies the generation of accurate wiring diagrams and dipswitch settings. Additionally, it offers access to product literature, training videos, and calculators that further support technicians in their day-to-day work. Please note, this app is not compatible for onsite BLE connections with Trane ComfortLink™ II systems.
Screenshots
Verdict
The clearest difference is rating: Trane® Technician at 4.8 against Magnetic Tool's 2.9. Trane® Technician also leads on ratings volume (220 vs 20). Magnetic Tool's advantage is review sentiment (38% vs 25%) and iOS requirement (11.0 vs 15.1). 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.
Trane® Technician holds the better App Store score, 4.8 against 2.9. That said, the two scores are not equally well evidenced: Trane® Technician has 220 ratings behind it against 20, so its average is the more settled of the two. Written reviews complicate that: 38% of Magnetic Tool's written reviews are positive against 25% of Trane® Technician's, so the app with the better star average is not the one people write more warmly about.
Magnetic Tool ships an update every 6 weeks, Trane® Technician every 5 weeks. The most recent releases landed on October 7, 2026 and October 14, 2026 respectively.
| Parameter | Magnetic Tool | Trane® Technician |
|---|---|---|
| Price | Free | Free |
| Rating | 2.9 (20 ratings) | 4.8 (220 ratings) — better |
| Positive reviews | 38.1% of reviews — better | 25.0% of reviews |
| Number of ratings | 20 | 220 — better |
| Update frequency | Every 6 weeks | Every 5 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 53 MB | 212 MB |
| Age rating | 4+ | 4+ |
| Developer | Danfoss A/S | TRANE U.S. INC |
Customer experience
Magnetic Tool
Trane® Technician
In-app purchases
Magnetic Tool
No in-app purchases
Trane® Technician
No in-app purchases
Questions
Is Magnetic Tool free?
Is Trane® Technician free?
Which has better reviews, Magnetic Tool or Trane® Technician?
Do Magnetic Tool or Trane® Technician have ads?
Which is updated more often, Magnetic Tool or Trane® Technician?
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