# Cold Correct vs GRF Snowtam

The clearest difference is review sentiment: Cold Correct at 100% against GRF Snowtam's 0%. Cold Correct also leads on rating (4.5 vs 1.0) and price ($0.99 vs $1.99). GRF Snowtam's advantage is update cadence (every 4 months vs every 60 months). On ratings volume, ads, in-app purchases and monetization model there is nothing between them.

Cold Correct costs $0.99 and GRF Snowtam $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Cold Correct holds the better App Store score, 4.5 against 1.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively. Written reviews point the same way: 100% of Cold Correct's written reviews are positive against 0% of GRF Snowtam's.

Cold Correct ships an update every 60 months, GRF Snowtam every 4 months. The most recent releases landed on October 10, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Cold Correct | GRF Snowtam |
| --- | --- | --- |
| Price | **$0.99** | $1.99 |
| Rating | **[4.5 (2 ratings)](https://appshunter.io/ios/app/cold-correct/id1169832115/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/grf-snowtam/id1514590590/reviews) |
| Number of ratings | **2** | 1 |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 60 months | **Every 4 months** |
| Monetization | Paid | Paid |
| Size | 10 MB | 9 MB |
| Requires iOS | 16.4 | **15.6** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SJR Ventures LLC](https://appshunter.io/developer/1169832114) | [Pedro Isidoro](https://appshunter.io/developer/1506809339) |

## 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


### GRF Snowtam

[App page](https://appshunter.io/ios/app/grf-snowtam/id1514590590)

Decode aviation weather reports with this tool. It handles Global Reporting Format (GRF) and older Snowtam formats, converts visibility and temperature units, and calculates altitude corrections for cold weather.

**Highlights:** GRF decoder, Snowtam decoder, MOTNE decoder, Visibility converter, Temperature converter, Altitude correction calculator

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Cold Correct free?

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

### Is GRF Snowtam free?

GRF Snowtam costs $1.99, with no in-app purchases.

### Which has better reviews, Cold Correct or GRF Snowtam?

Cold Correct is rated higher. Cold Correct averages 4.5 out of 5 from 2 ratings, while GRF Snowtam averages 1.0 from 1 ratings.

### Do Cold Correct or GRF Snowtam have ads?

Neither Cold Correct nor GRF Snowtam shows ads.

### Which is updated more often, Cold Correct or GRF Snowtam?

Cold Correct ships an update every 60 months, and GRF Snowtam every 4 months. Most recently, Cold Correct was updated on October 10, 2026 and GRF Snowtam on October 16, 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.*