# Mastercool Connect vs LG HVAC Service

The clearest difference is rating: Mastercool Connect at 5.0 against LG HVAC Service's 3.0. Mastercool Connect also leads on iOS requirement (12.0 vs 14.0). LG HVAC Service's advantage is review sentiment (25% vs 0%) and ratings volume (10 vs 3). On price, update cadence, ads and in-app purchases there is nothing between them.

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

Mastercool Connect holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 3 and 10 respectively. Written reviews complicate that: 0% of Mastercool Connect's written reviews are positive against 25% of LG HVAC Service's, so the app with the better star average is not the one people write more warmly about.

Mastercool Connect ships an update every 3 months, LG HVAC Service every 2 months. Both last shipped on November 3, 2026.

## The numbers

| Metric | Mastercool Connect | LG HVAC Service |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/mastercool-connect/id1515071015/reviews)** | [3.0 (10 ratings)](https://appshunter.io/ios/app/lg-hvac-service/id1521784544/reviews) |
| Number of ratings | 3 | **10** |
| Positive reviews | 0.0% of reviews | **25.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Free | Free |
| Size | 26 MB | 38 MB |
| Requires iOS | **12.0** | 14.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Mastercool, U.S.A., Inc.](https://appshunter.io/developer/1515071014) | [LG Electronics](https://appshunter.io/developer/382800716) |

## What reviewers say

### Mastercool Connect

[App page](https://appshunter.io/ios/app/mastercool-connect/id1515071015)

Monitor all your Mastercool devices equipped with Bluetooth Low Energy. This app supports specific digital manifolds, vacuum gauges, thermometers, and refrigerant scales for seamless data tracking.

**Highlights:** BLE device monitoring, Supports Spartan Smart Manifold, Supports Digital Vacuum Gauge, Supports Digital Thermometer/Hygrometer, Supports Electronic Refrigerant Scale

**Features:** macOS Compatibility

**In-app purchases:** none


### LG HVAC Service

[App page](https://appshunter.io/ios/app/lg-hvac-service/id1521784544)

Access technical content and service information for system air conditioners on your mobile device. Features include error code lookup, troubleshooting guides, manuals, refrigerant simulation, and unit conversion tools.

**Highlights:** Error code lookup, Troubleshooting guide, Manual guide download, Refrigerant simulation, Unit conversion, Remote call services

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Mastercool Connect free?

Mastercool Connect is free to download, with no in-app purchases.

### Is LG HVAC Service free?

LG HVAC Service is free to download, with no in-app purchases.

### Which has better reviews, Mastercool Connect or LG HVAC Service?

Mastercool Connect is rated higher. Mastercool Connect averages 5.0 out of 5 from 3 ratings, while LG HVAC Service averages 3.0 from 10 ratings.

### Do Mastercool Connect or LG HVAC Service have ads?

Neither Mastercool Connect nor LG HVAC Service shows ads.

### Which is updated more often, Mastercool Connect or LG HVAC Service?

Mastercool Connect ships an update every 3 months, and LG HVAC Service every 2 months. Most recently, Mastercool Connect was updated on November 3, 2026 and LG HVAC Service on November 3, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*