KoolCode vs Marshal
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
KoolCode
This utility app provides quick, offline access to alarm and parameter codes for refrigeration controllers. It helps service technicians and engineers easily look up information without needing manuals or laptops.
- On-the-spot ADAP-KOOL controller information
- Alarm status and parameter descriptions
- Offline code lookup tool
- Quick code translation
- Hierarchical controller selection
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Save time and increase productivity with the Danfoss KoolCode app for ”on the spot” ADAP-KOOL® controller information Danfoss A/S presents KoolCode app that fast and easy provides service technicians, refrigeration engineers, in-store technicians, and others with on-the-spot access to alarm status and parameter descriptions for a range of Danfoss refrigeration controllers with a three digit display. Download this app to get a simple off-line tool to easily look up alarm, error, status, and parameter codes without bringing along the printed manual or laptop. Features: The KoolCode app offers three alternative ways to look up display codes: -Quick code translation without knowing exactly the controller type you are facing -Hierarchical controller selection among Danfoss refrigeration controllers
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 update cadence: Marshal at every 2 months against KoolCode's every 8 months. On price, ads, in-app purchases and device support 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.
KoolCode ships an update every 8 months, Marshal every 2 months. The most recent releases landed on October 7, 2026 and October 13, 2026 respectively.
| Parameter | KoolCode | Marshal |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 50.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 8 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.1 | 15.0 — better |
| Further details — not scored | ||
| Size | 31 MB | 241 MB |
| Age rating | 4+ | 4+ |
| Developer | Danfoss A/S | Control Techniques Limited |
In-app purchases
KoolCode
No in-app purchases
Marshal
No in-app purchases
Questions
Is KoolCode free?
Is Marshal free?
Do KoolCode or Marshal have ads?
Which is updated more often, KoolCode or Marshal?
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