# Cold Correct vs 737 CSFF

The clearest difference is rating: 737 CSFF at 5.0 against Cold Correct's 4.5. 737 CSFF also leads on update cadence (every 4 months vs every 60 months). Cold Correct's advantage is price ($0.99 vs $2.99). On ratings volume, ads, in-app purchases and monetization model there is nothing between them.

Cold Correct costs $0.99 and 737 CSFF $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

737 CSFF holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 2 and 2 respectively.

Cold Correct ships an update every 60 months, 737 CSFF every 4 months. The most recent releases landed on October 9, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | Cold Correct | 737 CSFF |
| --- | --- | --- |
| Price | **$0.99** | $2.99 |
| Rating | [4.5 (2 ratings)](https://appshunter.io/ios/app/cold-correct/id1169832115/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/737-csff/id1551516212/reviews)** |
| Number of ratings | 2 | 2 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 60 months | **Every 4 months** |
| Monetization | Paid | Paid |
| Size | 10 MB | 11 MB |
| Requires iOS | **16.4** | 17.6 |
| Devices | iPhone, iPad | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [SJR Ventures LLC](https://appshunter.io/developer/1169832114) | [Dan O'Leary](https://appshunter.io/developer/1177083778) |

## What reviewers say

### Cold Correct

[App page](https://appshunter.io/ios/app/cold-correct/id1169832115)

Calculate temperature corrected altitude using data from aviation manuals. This utility helps pilots and aviation professionals adjust altitude readings based on cold temperature conditions.

**Highlights:** Temperature corrected altitude calculation, Uses AIM data, ICAO cold temperature correction table, Altitude adjustment for cold weather

**In-app purchases:** none


### 737 CSFF

[App page](https://appshunter.io/ios/app/737-csff/id1551516212)

A visual guide to understanding Cold Soaked Fuel Frost (CSFF) on 737 aircraft wings. It references airline handbooks and Boeing FCOM guidance for educational purposes.

**Highlights:** Visual representation of CSFF scenarios, Study guide for 737 wing frost, References North American Airline Flight Handbook, Includes Boeing FCOM guidance, Educational tool for pilots

**In-app purchases:** none


## Frequently asked questions

### Is Cold Correct free?

Cold Correct costs $0.99, with no in-app purchases.

### Is 737 CSFF free?

737 CSFF costs $2.99, with no in-app purchases.

### Which has better reviews, Cold Correct or 737 CSFF?

737 CSFF is rated higher. Cold Correct averages 4.5 out of 5 from 2 ratings, while 737 CSFF averages 5.0 from 2 ratings.

### Do Cold Correct or 737 CSFF have ads?

Neither Cold Correct nor 737 CSFF shows ads.

### Which is updated more often, Cold Correct or 737 CSFF?

Cold Correct ships an update every 60 months, and 737 CSFF every 4 months. Most recently, Cold Correct was updated on October 9, 2026 and 737 CSFF on September 29, 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.*