Ref Tools vs LGMV
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Ref Tools
This app provides HVACR technicians with essential tools and information for field service. It includes refrigerant calculators, troubleshooting guides, product finders, and access to spare parts. Listen to educational podcasts to enhance your knowledge on the go.
- Refrigerant Slider for P/T calculations
- Solenoid valve coil testing tool
- Refrigeration system troubleshooting guide
- Product data finder
- Spare parts ordering
- Low-GWP refrigerant comparison
- TXV Superheat optimization
- Educational podcasts
Read full descriptionHide full description
Get the guidance, support, information, and tools you need—on the job and in the field. Ref Tools is a free, powerful app that contains essential tools every HVACR technician needs in their digital toolbelt. Ref Tools offers a collection of useful air conditioning and refrigeration tools: Refrigerant Slider As a featured part of Ref Tools, you get all the features and functionality that made Refrigerant Slider a hit with millions of installers around the world. Quickly calculate pressure/temperature ratios and find essential information on over 80 refrigerants. Magnetic Tool Test and troubleshoot solenoid valve coils quickly and easily. Troubleshooter Get help diagnosing issues in refrigeration systems, so you can quickly identify symptoms and find recommended solutions. Product Finder Find extensive product-related data in one place. Search by product code number or product category to access and share product specifications, documentation, visuals, and more. Spare Parts Access and order an extensive list of Danfoss spare parts and service kits for air conditioning and refrigeration applications. Low-GWP Tool Find and compare climate-friendly refrigerants for retrofitting by checking compatibility with the TXV. TXV Superheat Tuner Optimize superheat in less than 15 minutes. Using advanced algorithms, TXV Superheat Tuner provides valve-specific adjustment recommendations. Podcasts The workday can be full and the road long, so Ref Tools also provides you with some educational entertainment. You can listen to podcasts, including the popular Chilling with Jens podcast, directly in the app. So, take a break and chill out a bit while learning something new about refrigeration. More about Refrigerant Slider Refrigerant Slider, now a part of Ref Tools, helps you quickly calculate the pressure-to-temperature ratio for more than 80 refrigerants, including natural refrigerants such as ammonia and transcritical CO2. Refrigerant Slider also provides you with information about each refrigerant, including Global Warming Potential (GWP) and Ozone Depleting Potential (ODP). You can switch between the IPCC AR4 and AR5 values, where AR4 values are used in relation to the European F-Gas regulations. Refrigerant Slider’s P/T calculations use extended curve–fitting models based on Refprop 10 results. You can also see both dew and bubble point for refrigerants with glide. Streamline your workflow Ref Tools goes beyond just providing quick access to helpful tools; it helps you save time by allowing you to track your most visited service sites and save unique settings for each one. Simplify each service call with ease. Feedback Your input matters – we would love to hear it from you. We're committed to continuously improving Ref Tools to meet your needs. If you encounter a bug or have a feature suggestion, please use the in-app feedback function available in Settings. Alternatively, you can reach us via email at coolapp@danfoss.com. Danfoss Climate Solutions At Danfoss Climate Solutions, we engineer energy-efficient solutions to help the world get more out of less. Our innovative products and solutions enable a decarbonized, digital, and more sustainable tomorrow, and our technology supports a cost-efficient transition to renewable energy sources. With a strong foundation in quality, people, and the climate, we drive the energy, refrigerant, and food system transitions needed to achieve climate goals. Read more about us at www.danfoss.com. Terms and Conditions apply for use of the app.
LGMV
This application allows air conditioning service engineers to monitor LG air conditioner product status, diagnose issues, and interpret refrigeration cycles. It provides real-time data, graphical representations, and troubleshooting guides to assist in problem-solving.
- Monitor air conditioner status
- View pressure and frequency graphs
- Control indoor unit operation
- Save air conditioner data
- Access troubleshooting guides
- Save Black Box and Test Report data
Read full descriptionHide full description
■ New LGMV version released New LGMV has been released in order to expand the supported platforms(iPhone) and provide the same UX/features regardless of the platform. The existing LGMV lineup will be added sequentially. ( If all lineups are supported, the existing LGMV will end service.) ■ About LGMV LGMV is designed to monitor the status of LG Electronics Air Conditioner products which helps engineers diagnose products and interpret refrigeration cycle. Through this app, engineers will be able to identify the operation status of the product and provide a solution to the problems. ※ Please note that this app is only for air conditioning service engineers and cannot be used by general users. ■ Key function 1. Monitoring viewer: Display key information of air conditioner 2. Graph: Display pressure and frequency information of air conditioner in graph 3. Indoor unit operation control: Controls the operating mode of indoor units when the module is connected to the outdoor unit. 4. Save data: Save received air conditioner information as file 5. Save Black Box and Test Report: Receives Black Box data and Test operation result from product. 6. Troubleshooting guide: Display error number and supports resolution plan for the error number list in PDF document. 7. Additional Function (This feature is available on some models.) • Test run Info • Serial number Info • Operating time Info • Auto Test Run ■ Wi-Fi Module (Sold separately) Model type : LGMV Wi-Fi Module Model name : PLGMVW100
Screenshots
Verdict
The clearest difference is rating: Ref Tools at 3.9 against LGMV's 2.1. Ref Tools also leads on review sentiment (58% vs 25%) and update cadence (every 5 weeks vs every 3 months). On price, ratings volume, 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.
Ref Tools holds the better App Store score, 3.9 against 2.1. Both are backed by a comparable volume of ratings — 52 and 25 respectively. Written reviews point the same way: 58% of Ref Tools's written reviews are positive against 25% of LGMV's.
Ref Tools ships an update every 5 weeks, LGMV every 3 months. Both last shipped on October 7, 2026.
| Parameter | Ref Tools | LGMV |
|---|---|---|
| Price | Free | Free |
| Rating | 3.9 (52 ratings) — better | 2.1 (25 ratings) |
| Positive reviews | 57.6% of reviews — better | 25.0% of reviews |
| Number of ratings | 52 — better | 25 |
| Update frequency | Every 5 weeks — better | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 98 MB | 57 MB |
| Age rating | 4+ | 4+ |
| Developer | Danfoss A/S | LG Electronics, Inc. |
Customer experience
Ref Tools
LGMV
Bugs and requests
Ref Tools
Reported bugs
27 issues- CRASHED instantly on Mac Mini M4
- App won’t open on iPhone
- App flashes up and disappears
- Cannot open app
- Immediately shuts off since recent release
Show 22 moreShow fewer
- Crash au lancement since update
- Will not save to Home Screen
- Incorrect PT Charting for r134a
- Information doesn’t slide down
- Crashes on iOS12.1.4
- App won’t open since previous update
- List of refrigerants shifted upwards on iPhone 10
- Stuck on R134a, needs update for current iOS
- R744A only goes to 60 psi
- Scale did not go low enough for deep vacuum
- Missing R22 on Apple version
- Missing R717 (Ammonia)
- Missing R-22
- Missing R124a
- No longer lists Ammonia
- Missing Refrigerants since app update
- Missing Ammonia and CO2
- r410a is missing since update
- Removed r22, 410a, and 407c
- Refrigerants missing now
- Removed slider for ammonia
- Scale doesn't go into vacuum
Requested features
18 requests- More residential AC information
- Troubleshooter for Residential & Commercial
- Add SP22 refrigerant
- Add R-11 refrigerant
- Add R-123 range down to 40 degrees
Show 13 moreShow fewer
- Add R744 and R744A to 0 psia
- Scale to go lower for R-123 vacuum
- Add R410a
- Add R407c
- Add R404A
- Add R22
- Add R124a
- Add Ammonia
- Add CO2
- Add R717 (Ammonia)
- Scale going higher on CO2
- Setting for high altitude
- Scale to go into vacuum
LGMV
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Ref Tools
No in-app purchases
LGMV
No in-app purchases







