# CORE Service vs RefCalc

The clearest difference is price: CORE Service at Free against RefCalc's $1.99. CORE Service also leads on device support (3 vs 1). On ads, in-app purchases and iOS requirement there is nothing between them.

CORE Service is free to download; RefCalc costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | CORE Service | RefCalc |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | **[3.6 (19 ratings)](https://appshunter.io/ios/app/core-service/id1566612696/reviews)** | — |
| Number of ratings | **19** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | — |
| Monetization | Free | — |
| Size | 47 MB | 31 MB |
| Requires iOS | **15.6** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Lennox Industries](https://appshunter.io/developer/355049651) | [Duong Nguyen Huu](https://appshunter.io/developer/1887479789) |

## What reviewers say

### CORE Service

[App page](https://appshunter.io/ios/app/core-service/id1566612696)

This app provides a wireless interface for commercial HVAC technicians to control and service specific Lennox rooftop units. It offers guided setup, enhanced testing, and parameter configuration to streamline the service process.

**Highlights:** Wireless mobile service app, Guided setup with progress indicators, Enhanced test functionality, Real-time sensor readings and trending, Parameter configuration, Exportable setup summaries

**Features:** macOS Compatibility

**In-app purchases:** none


### RefCalc

[App page](https://appshunter.io/ios/app/refcalc-refrigerant-pt-chart/id6793166788)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is CORE Service free?

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

### Is RefCalc free?

RefCalc costs $1.99, with no in-app purchases.

### Do CORE Service or RefCalc have ads?

Neither CORE Service nor RefCalc shows ads.

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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.*