# SMART Service Tool vs SuperHeatCalc

The clearest difference is update cadence: SMART Service Tool at every 3 weeks against SuperHeatCalc's every 11 months. SMART Service Tool also leads on review sentiment (75% vs 50%) and rating (4.0 vs 3.8). SuperHeatCalc's advantage is iOS requirement (13.6 vs 26.0). On price, ratings volume, 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.

SMART Service Tool holds the better App Store score, 4.0 against 3.8. Both are backed by a comparable volume of ratings — 15 and 6 respectively. Written reviews point the same way: 75% of SMART Service Tool's written reviews are positive against 50% of SuperHeatCalc's.

SMART Service Tool ships an update every 3 weeks, SuperHeatCalc every 11 months. Both last shipped on September 22, 2026.

## The numbers

| Metric | SMART Service Tool | SuperHeatCalc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (15 ratings)](https://appshunter.io/ios/app/smart-service-tool/id918610107/reviews)** | [3.8 (6 ratings)](https://appshunter.io/ios/app/superheatcalc/id1143744721/reviews) |
| Number of ratings | **15** | 6 |
| Positive reviews | **75.0% of reviews** | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 11 months |
| Monetization | Free | Free |
| Size | 62 MB | 2 MB |
| Requires iOS | 26.0 | **13.6** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Rodrigo Miranda](https://appshunter.io/developer/1742641426) | [Blue Mountain Consulting Inc](https://appshunter.io/developer/1143744720) |

## What reviewers say

### SMART Service Tool

[App page](https://appshunter.io/ios/app/smart-service-tool/id918610107)

This tool helps HVACR technicians quickly convert pressure to temperature and calculate superheat/subcooling using refrigerant data. It offers selectable units, customizable displays, and the ability to record and email data.

**Highlights:** Pressure to temperature conversion, Superheat and subcooling calculation, Selectable units of measure, Digital or analog display modes, Record and email data, Over 65 refrigerants supported

**In-app purchases:** none


### SuperHeatCalc

[App page](https://appshunter.io/ios/app/superheatcalc/id1143744721)

This app assists HVACR technicians with field service by providing calculations for superheat, subcooling, airflow, and psychrometrics. It supports 28 refrigerants and includes instructions for use.

**Highlights:** Target superheat calculation for fixed orifice devices, Superheat and subcooling for 28 refrigerants, Airflow calculations, Psychrometric calculations, HVACR field service aid

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SMART Service Tool free?

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

### Is SuperHeatCalc free?

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

### Which has better reviews, SMART Service Tool or SuperHeatCalc?

SMART Service Tool is rated higher. SMART Service Tool averages 4.0 out of 5 from 15 ratings, while SuperHeatCalc averages 3.8 from 6 ratings.

### Do SMART Service Tool or SuperHeatCalc have ads?

Neither SMART Service Tool nor SuperHeatCalc shows ads.

### Which is updated more often, SMART Service Tool or SuperHeatCalc?

SMART Service Tool ships an update every 3 weeks, and SuperHeatCalc every 11 months. Most recently, SMART Service Tool was updated on September 22, 2026 and SuperHeatCalc on September 22, 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.*