# KoolCode vs F

The clearest difference is update cadence: F at every 2 months against KoolCode's every 8 months. F also leads on iOS requirement (13.4 vs 15.1). KoolCode's advantage is review sentiment (50% vs 33%). 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.

KoolCode ships an update every 8 months, F every 2 months. The most recent releases landed on September 14, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | KoolCode | F |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/koolcode/id563222728/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | **50.0% of reviews** | 33.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 2 months** |
| Monetization | Free | Free |
| Size | 31 MB | 19 MB |
| Requires iOS | 15.1 | **13.4** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Danfoss A/S](https://appshunter.io/developer/423984644) | [Gestimat – Groupe Dehon](https://appshunter.io/developer/928450680) |

## What reviewers say

### KoolCode

[App page](https://appshunter.io/ios/app/koolcode/id563222728)

This utility app provides quick, offline access to alarm and parameter codes for refrigeration controllers. It helps service technicians and engineers easily look up information without needing manuals or laptops.

**Highlights:** On-the-spot ADAP-KOOL controller information, Alarm status and parameter descriptions, Offline code lookup tool, Quick code translation, Hierarchical controller selection

**Features:** macOS Compatibility

**In-app purchases:** none


### F

[App page](https://appshunter.io/ios/app/f-gas-solutions/id928450681)

This app helps professionals understand and comply with European F-Gas regulations. It provides tools for calculating refrigerant loads, determining leak detection frequencies, and identifying suitable process fluids for various equipment.

**Highlights:** F-Gas III regulation compliance, Refrigerant load calculation, Leak detection frequency guide, Process fluid and solution recommendations, Equipment and application specific guidance

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is KoolCode free?

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

### Is F free?

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

### Do KoolCode or F have ads?

Neither KoolCode nor F shows ads.

### Which is updated more often, KoolCode or F?

KoolCode ships an update every 8 months, and F every 2 months. Most recently, KoolCode was updated on September 14, 2026 and F on September 19, 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.*