# Refrigeration Toolkit vs Koch Air

The clearest difference is review sentiment: Refrigeration Toolkit at 100% against Koch Air's 0%. Refrigeration Toolkit also leads on rating (4.8 vs 4.5) and ratings volume (69 vs 6). Koch Air's advantage is update cadence (every 2 days vs fortnightly) and iOS requirement (9.0 vs 16.0). On price, ads, in-app purchases and monetization model 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 4.5. That said, the two scores are not equally well evidenced: Refrigeration Toolkit has 69 ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 100% of Refrigeration Toolkit's written reviews are positive against 0% of Koch Air's.

Refrigeration Toolkit ships an update fortnightly, Koch Air every 2 days. The most recent releases landed on October 24, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Refrigeration Toolkit | Koch Air |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (69 ratings)](https://appshunter.io/ios/app/refrigeration-toolkit/id1483010728/reviews)** | [4.5 (6 ratings)](https://appshunter.io/ios/app/koch-air/id1490623748/reviews) |
| Number of ratings | **69** | 6 |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 2 days** |
| Monetization | Free | Free |
| Size | 168 MB | 5 MB |
| Requires iOS | 16.0 | **9.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Heatcraft Refrigeration Products, LLC](https://appshunter.io/developer/1483010727) | [Koch Air LLC](https://appshunter.io/developer/1490623747) |

## What reviewers say

### 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


### Koch Air

[App page](https://appshunter.io/ios/app/koch-air/id1490623748)

This business app provides a mobile e-commerce platform for customers to easily access detailed catalog information, search for parts, and check warranty status. It's designed for efficient lookup of parts, supplies, and equipment sold by the company.

**Highlights:** Parts lookup, Warranty information search, Critical parts list, Detailed catalog display, Mobile e-commerce

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Refrigeration Toolkit free?

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

### Is Koch Air free?

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

### Which has better reviews, Refrigeration Toolkit or Koch Air?

Refrigeration Toolkit is rated higher. Refrigeration Toolkit averages 4.8 out of 5 from 69 ratings, while Koch Air averages 4.5 from 6 ratings.

### Do Refrigeration Toolkit or Koch Air have ads?

Neither Refrigeration Toolkit nor Koch Air shows ads.

### Which is updated more often, Refrigeration Toolkit or Koch Air?

Refrigeration Toolkit ships an update fortnightly, and Koch Air every 2 days. Most recently, Refrigeration Toolkit was updated on October 24, 2026 and Koch Air on October 15, 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.*