TurboTool® vs Marshal
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
TurboTool®
This app assists service technicians in diagnosing and troubleshooting Danfoss Turbocor® compressors in the field. It helps identify symptoms, explore potential causes, and provides recommended next steps, along with quick reference charts and service literature.
- Compressor component diagnosis
- Symptom identification and cause analysis
- Recommended troubleshooting steps
- Access to quick reference charts
- Service literature and manuals
- Spare parts identification via scanning
- Service videos for component repair
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The TurboTool® app makes it easy for service technicians to troubleshoot Danfoss Turbocor® compressors out in the field. You can use the app to help you identify symptoms, work through possible causes, and get recommended next steps. You can also instantly access TurboTool® quick reference charts. Please note that the recommendations found in the app are intended for experienced professionals familiar with Turbocor® compressors. TurboTool® should not be used by non-professionals without adequate training. How to Use When starting up TurboTool®, you'll first be taken to the Component tab, which displays a cutaway image of a Danfoss Turbocor® compressor. Select which component is having issues and TurboTool® will display a list of symptoms you can match with the compressor being serviced. You can also resolve issues on the Compressor tab by selecting symptoms on a compressor level. Both tabs allow you to see potential causes, solutions, and service literature to reference for further information. The Verify tab provides the correct operating parameters for key components, eliminating the need to keep paper documents on hand. TurboTool® also gives you access to service videos that demonstrate how to remove, install, and rebuild key components in Turbocor® compressors as well as hundreds of pages of parts catalogs and training manuals. Finally, TurboTool® helps you quickly identify required spare parts. Simply scan the compressor's serial # using your smartphone camera or enter the part or model number, and the app will display potential spare parts kits. Support For TurboTool® support, please email turbocorsupport.us@danfoss.com. You can visit http://turbocor.danfoss.com for more information and contact details. 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.
Marshal
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Marshal is your drive expert in the field and allows you to commission, clone, diagnose issues, and monitor the drive in just a few screen taps. Easy to use, Marshal gets your drive up and running in under 60 seconds. Powered by Near Field Communication (NFC) technology, simply connect to the drive by placing your mobile device close to the NFC logo. Data transfer takes less than 0.5s. Marshal supports you with: Commissioning • Power off or on commissioning (even in the box) • FastStart – assisted commissioning. Only 4 simple steps to get you up and running • Advanced features available in parameter setting • Pre-set application configurations Cloning • Parameters can be easily transferred from one drive to another - just tap to write as many drives as you want • Back-up and restore the configuration via the app Share • Share configuration via Outlook, OneDrive, WhatsApp etc. • Shared configurations are compatible with Marshal & Connect (our PC commissioning tool) • Export configuration to PDF format Offline capabilities • Create new configurations in the app • Open existing projects to review/change parameters Diagnostics • Guided diagnostics for the system even without drive alarms or trips • Diagnostics available with power off or on • Get support with drive alarms within the app • Error log & active error diagnostics – view active and historical error info • Differences from default – compare configuration against factory defaults Registration • Activate the 5 Year Warranty via the app • Access & download support materials via your CT account Monitoring and security • Quick view of parameter settings & drive status • Restrict access to drive configuration via PIN • Quick visualisation of I/O, motor, and speed settings
Screenshots
Verdict
The clearest difference is iOS requirement: TurboTool® at 12.0 against Marshal's 15.0. 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.
TurboTool® ships an update every 3 months, Marshal every 2 months. The most recent releases landed on September 22, 2026 and July 16, 2026 respectively.
| Parameter | TurboTool® | Marshal |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (16 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 16 — better | — |
| Update frequency | Every 3 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 12.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 158 MB | 241 MB |
| Age rating | 4+ | 4+ |
| Developer | Danfoss A/S | Control Techniques Limited |
In-app purchases
TurboTool®
No in-app purchases
Marshal
No in-app purchases









