# Ref Tools

> The all-in-one app for air conditioning and refrigeration technicians.

Canonical page: [https://chrome-stats.com/d/com.danfoss.koolapp](https://chrome-stats.com/d/com.danfoss.koolapp)

## Overview

- **ID:** `com.danfoss.koolapp`
- **Platform:** Android
- **Type:** Android app
- **Status:** Available
- **Publisher:** Danfoss A/S
- **Category:** TOOLS
- **Downloads:** 2,953,273
- **Rating:** 4.73 / 5 (9,973 ratings)
- **Version:** 6.77.2
- **Last updated:** 2026-08-24
- **First published:** 2011-09-23
- **Publisher country:** DK
- **Size:** 49 MB
- **Data as of:** 2026-09-15
- **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=com.danfoss.koolapp)
- **Website:** [https://www.danfoss.com/en/service-and-support/downloads/dcs/refrigerant-slider/](https://www.danfoss.com/en/service-and-support/downloads/dcs/refrigerant-slider/)
- **Privacy policy:** [https://www.danfoss.com/en/terms/privacy](https://www.danfoss.com/en/terms/privacy)

## Description

Ref Tools is a free, powerful app designed specifically for air conditioning and refrigeration technicians. It consolidates essential tools like a Refrigerant Slider for over 140 refrigerants, a Magnetic Tool for testing solenoid valve coils, and a Troubleshooter to quickly diagnose system issues.

The app also includes a Product Finder for accessing specifications and documentation, Spare Parts ordering, and a Low-GWP Tool to compare eco-friendly refrigerants. Features like the TXV Superheat Tuner optimize system settings efficiently. Additionally, Ref Tools offers educational podcasts to keep technicians informed during their workday. Developed by Danfoss Climate Solutions, this app streamlines service calls by saving settings and tracking frequently visited sites, making it an indispensable digital toolbelt for HVAC professionals.

## Rankings

- #35,018 — Overall
- #8 — tool

## Permissions and access

### Permissions

- `android.permission.ACCESS_COARSE_LOCATION`
- `android.permission.ACCESS_FINE_LOCATION`
- `android.permission.ACCESS_NETWORK_STATE`
- `android.permission.ACCESS_WIFI_STATE`
- `android.permission.CAMERA`
- `android.permission.DETECT_SCREEN_CAPTURE`
- `android.permission.FOREGROUND_SERVICE`
- `android.permission.INTERNET`
- `android.permission.POST_NOTIFICATIONS`
- `android.permission.READ_EXTERNAL_STORAGE`
- `android.permission.VIBRATE`
- `android.permission.WAKE_LOCK`
- `android.permission.WRITE_EXTERNAL_STORAGE`
- `com.danfoss.koolapp.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION`
- `com.google.android.c2dm.permission.RECEIVE`
- `com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE`

## Review summary

Users consistently praise Ref Tools as an indispensable, fast and informative HVAC aid. It is seen as a labor saver and the go-to tool for refrigeration and HVAC technicians, with many noting its usefulness for teaching and on-the-job reference. Positive comments highlight digital PT charts, easy access to essential information, and broad professional adoption. Reviews are multilingual and broadly enthusiastic. There is only a single mention of monthly updates causing annoyance, with no widespread cons. Overall, the app is viewed as a reliable, must-have tool for professionals.

### Pros

- Very useful and informative for HVAC/refrigeration
- Labor-saving/time-saving for technicians
- Essential tool for HVAC professionals / go-to app
- Digital replacement for PT charts (no need for physical bags)
- Widely adopted by instructors and technicians / broad professional adoption

## Similar extensions and apps

- [RefriPro HVAC Field Tools](https://chrome-stats.com/d/com.sognoragroup.refripro) — 52 users
- [Refrigeration ToolKit](https://chrome-stats.com/d/com.heatcraft.xrefapp) — 47,667 users, 4.46 / 5
- [Troubleshooter](https://chrome-stats.com/d/com.danfoss.troubleshooterapp) — 412,399 users, 4.38 / 5
- [Spare Parts](https://chrome-stats.com/d/com.danfoss.irapp) — 89,947 users
- [360 - Tools](https://chrome-stats.com/d/com.kwh360.tools) — 444 users
- [FG Toolbox](https://chrome-stats.com/d/com.fullgauge.fgtoolbox) — 23,636 users
- [Forane® Refrigerants Tool Belt](https://chrome-stats.com/d/com.Forane.Forane) — 194,728 users, 3.98 / 5
- [HVAC Tools Pro](https://chrome-stats.com/d/com.hvacpro_tecnico.app) — 1,089 users
- [HVAC Tools Pro](https://chrome-stats.com/d/com.hvactoolspro) — 611 users
- [Charli Refrigeración](https://chrome-stats.com/d/com.charli) — 571 users
- [Manuales Tecnicos Refriserka](https://chrome-stats.com/d/com.refriserka.manuales) — 955 users
- [Low-GWP Tool](https://chrome-stats.com/d/com.danfoss.lowgwptool) — 65,777 users

---

Source: [Chrome-Stats](https://chrome-stats.com/d/com.danfoss.koolapp)