Cold Correct vs 737 CSFF
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Cold Correct
Calculate temperature corrected altitude using data from aviation manuals. This utility helps pilots and aviation professionals adjust altitude readings based on cold temperature conditions.
- Temperature corrected altitude calculation
- Uses AIM data
- ICAO cold temperature correction table
- Altitude adjustment for cold weather
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Using data from the Aeronautical Information Manual (AIM) and the ICAO cold temperature correction table this application can compute a temperature corrected altitude.
737 CSFF
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.
- 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
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This app is a study guide and a visual representation to aid in the understanding around the many scenarios when Cold Soaked Fuel Frost (CSFF) is encountered on the wing of a 737. This app is not approved for use during flight operations. The CSFF guidance in this app is designed around a North American Airline Flight Handbook and reference to the Boeing FCOM. This app is not a substitute for company flight manuals, an FAA approved deicing program, Boeing FCOM guidance or good judgement.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Cold Correct | 737 CSFF |
|---|---|---|
| Price | $0.99 — better | $2.99 |
| Rating | 4.5 (2 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 2 | 2 |
| Update frequency | Every 60 months | Every 4 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad | iPhone, iPad, Apple Watch — better |
| Requires iOS | 16.4 — better | 17.6 |
| Further details — not scored | ||
| Size | 10 MB | 11 MB |
| Age rating | 4+ | 4+ |
| Developer | SJR Ventures LLC | Dan O'Leary |
Customer experience
Cold Correct
737 CSFF
In-app purchases
Cold Correct
No in-app purchases
737 CSFF
No in-app purchases
