Comparison

KoolCode vs MRLDS 400

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • On-the-spot ADAP-KOOL controller information
  • Alarm status and parameter descriptions
  • Offline code lookup tool
  • Quick code translation
  • Hierarchical controller selection
Features
Read full description

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

About

MRLDS 400

Features
Read full description

The Copeland MRLDS 400 App allows users to configure, maintain and interface with compatible MRLDS-400 Gas detectors. Once a Bluetooth connection has been established, the app replaces the need for specialty training/tools and makes compliance with safety standards (ASHRAE 15, EN 378) easy and effective. Features include: -Configuration (Rename device, define alarm thresholds, adjust Modbus settings, configure relay behavior and manage analog output settings.) -Maintenance (test LED/buzzer function, relays, and analog output level.) -Calibration (View sensor type, serial number and “Calibration Due” timer and initiate zero / span calibrations with customizable field calibration certificate.) Intuitive Interface (view current gas measurement and acknowledge alarm/fault status.)

Screenshots

KoolCode1 screens
MRLDS 4003 screens

Verdict

The call

KoolCode and MRLDS 400 are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

KoolCode ships an update every 8 months, MRLDS 400 every 5 months. Both last shipped on September 14, 2026.

ScorecardNo meaningful differences
KoolCode versus MRLDS 400: the parameters behind the verdict, then further details
ParameterKoolCodeMRLDS 400
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews50.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 8 monthsEvery 5 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS15.114.0 — better
Further details — not scored
Size31 MB8 MB
Age rating4+4+
DeveloperDanfoss A/SCopeland LP

In-app purchases

None

KoolCode

No in-app purchases

None

MRLDS 400

No in-app purchases

Questions

Is KoolCode free?
KoolCode is free to download, with no in-app purchases.
Is MRLDS 400 free?
MRLDS 400 is free to download, with no in-app purchases.
Do KoolCode or MRLDS 400 have ads?
Neither KoolCode nor MRLDS 400 shows ads.
Which is updated more often, KoolCode or MRLDS 400?
KoolCode ships an update every 8 months, and MRLDS 400 every 5 months. Most recently, KoolCode was updated on September 14, 2026 and MRLDS 400 on September 14, 2026.

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