# 737 Brake Cooling vs QuickColdAlt

The clearest difference is iOS requirement: 737 Brake Cooling at 13.4 against QuickColdAlt's 16.4. 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.

737 Brake Cooling ships an update every 8 days, QuickColdAlt every 11 days. The most recent releases landed on November 29, 2025 and August 1, 2026 respectively.

## The numbers

| Metric | 737 Brake Cooling | QuickColdAlt |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/quickcoldalt/id6739363484/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 8 days** | Every 11 days |
| Monetization | — | Free |
| Size | 14 MB | 40 MB |
| Requires iOS | **13.4** | 16.4 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Rene Klomp](https://appshunter.io/developer/1721880554) | [SEUNGSOO YOU](https://appshunter.io/developer/1785034668) |

## What reviewers say

### 737 Brake Cooling

[App page](https://appshunter.io/ios/app/737-brake-cooling/id6479173703)

**Features:** macOS Compatibility

**In-app purchases:** none


### QuickColdAlt

[App page](https://appshunter.io/ios/app/quickcoldalt/id6739363484)

This utility calculates temperature and altitude corrections for flight operations. It offers a user-friendly interface for quick and reliable results, with a dark mode ideal for night flying. The app is completely free and ad-free.

**Highlights:** Temperature and altitude correction calculation, User-friendly interface, Fast results (under 10 seconds), Clear and reliable display, Dark mode for night flights, Completely free and ad-free

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 737 Brake Cooling free?

737 Brake Cooling is free to download, with no in-app purchases.

### Is QuickColdAlt free?

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

### Do 737 Brake Cooling or QuickColdAlt have ads?

Neither 737 Brake Cooling nor QuickColdAlt shows ads.

### Which is updated more often, 737 Brake Cooling or QuickColdAlt?

737 Brake Cooling ships an update every 8 days, and QuickColdAlt every 11 days. Most recently, 737 Brake Cooling was updated on November 29, 2025 and QuickColdAlt on August 1, 2026.

---

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