# SMART Service Tool vs Refrigeration Toolkit

The clearest difference is rating: Refrigeration Toolkit at 4.8 against SMART Service Tool's 3.4. Refrigeration Toolkit also leads on review sentiment (100% vs 75%) and ratings volume (69 vs 21). 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.

Refrigeration Toolkit holds the better App Store score, 4.8 against 3.4. Both are backed by a comparable volume of ratings — 21 and 69 respectively. Written reviews point the same way: 75% of SMART Service Tool's written reviews are positive against 100% of Refrigeration Toolkit's.

SMART Service Tool ships an update every 3 weeks, Refrigeration Toolkit fortnightly. Both last shipped on October 24, 2026.

## The numbers

| Metric | SMART Service Tool | Refrigeration Toolkit |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.4 (21 ratings)](https://appshunter.io/ios/app/smart-service-tool/id918610107/reviews) | **[4.8 (69 ratings)](https://appshunter.io/ios/app/refrigeration-toolkit/id1483010728/reviews)** |
| Number of ratings | 21 | **69** |
| Positive reviews | 75.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Fortnightly** |
| Monetization | Free | Free |
| Size | 62 MB | 168 MB |
| Requires iOS | 26.0 | **16.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Rodrigo Miranda](https://appshunter.io/developer/1742641426) | [Heatcraft Refrigeration Products, LLC](https://appshunter.io/developer/1483010727) |

## 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


### Refrigeration Toolkit

[App page](https://appshunter.io/ios/app/refrigeration-toolkit/id1483010728)

This tool helps users build and model bug fixes. It is designed for professionals in the refrigeration industry to streamline their maintenance and repair processes.

**Highlights:** Build models, Model bug fixes, Streamline processes

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

**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 Refrigeration Toolkit free?

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

### Which has better reviews, SMART Service Tool or Refrigeration Toolkit?

Refrigeration Toolkit is rated higher. SMART Service Tool averages 3.4 out of 5 from 21 ratings, while Refrigeration Toolkit averages 4.8 from 69 ratings.

### Do SMART Service Tool or Refrigeration Toolkit have ads?

Neither SMART Service Tool nor Refrigeration Toolkit shows ads.

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

SMART Service Tool ships an update every 3 weeks, and Refrigeration Toolkit fortnightly. Most recently, SMART Service Tool was updated on October 24, 2026 and Refrigeration Toolkit on October 24, 2026.

---

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