# GRF Snowtam — Global Reporting Format

> Aviation weather report decoder and utility tool for pilots and aviation professionals. (iPhone/iPad app by Pedro Isidoro.)

- Source: https://appshunter.io/ios/app/grf-snowtam/id1514590590 (this page in markdown: same URL + `.md`)
- Developer: [Pedro Isidoro](https://appshunter.io/developer/1506809339)
- Category: Utilities
- Price: $1.99 (on sale, was $2.99)
- Rating: 1.00/5 from 1 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.6 · 9 MB
- Languages: American English
- Released: 2020-05-21
- Data updated: 2026-08-24
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/grf-snowtam/id1514590590/reviews.md

## What is GRF Snowtam?

Complete and Accurate GRF decoder (New format GRF - global reporting format) to decode RCAM.
Complete and Accurate Snowtam decoder (old format - used in Russia).
MOTNE Decoder (Old format for Runway Condition Code)
Converter for U.S. Visibility SM/m table, and temperatures
Altitude correction calculator for cold Temperatures
enjoy!

## Key features

- GRF decoder
- Snowtam decoder
- MOTNE decoder
- Visibility converter
- Temperature converter
- Altitude correction calculator

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/grf-snowtam/id1514590590/reviews.md

### 1/5 — Can’t get anything into E

*2022-02-23*

No ability to contact developer except through FB.

## Frequently asked questions about GRF Snowtam

### What is GRF Snowtam?

GRF Snowtam is a paid utility application designed to decode aviation weather reports. It supports the Global Reporting Format (GRF) and older Snowtam formats, along with other aviation weather-related conversions and calculations.

### What aviation weather formats does GRF Snowtam decode?

GRF Snowtam can decode the new Global Reporting Format (GRF) for RCAM, and the old format Snowtam used in Russia. It also includes a MOTNE Decoder for the old Runway Condition Code format.

### Does GRF Snowtam offer any conversion tools?

Yes, GRF Snowtam includes a converter for U.S. Visibility SM/m tables and temperatures. It also features an altitude correction calculator specifically for cold temperatures.

### What devices is GRF Snowtam compatible with?

GRF Snowtam is compatible with iPhones and iPods. It is rated for ages 4 and up.

### How much does GRF Snowtam cost?

GRF Snowtam is a paid application priced at $1.99. There are no in-app purchases or advertisements mentioned.

### When was GRF Snowtam last updated?

The latest version of GRF Snowtam is 3.1.0, which was last updated on November 18, 2025. This indicates a recent update for the application.

### What is the user feedback on GRF Snowtam?

Based on the available data, GRF Snowtam has received one rating of 1.0 stars. Further user sentiment details are not provided.

### Does GRF Snowtam have ads?

No, GRF Snowtam does not contain advertisements. The application is a paid utility and does not feature any in-app ads.

## Version history (last 5 releases)

### 3.1.0 — 2025-11-18

MOTNE Decoder added
Snowtam decoder (old format - used in Russia) reinstated
Altitude correction calculator for cold Temperatures
All graphics improved

### 2.2 — 2022-01-15

Old Snowtam and Motne removed

### 2.1 — 2021-09-09

App renamed

### 2.0 — 2021-09-07

GRF - Global Reporting Format for Runway Surface added

### 1.4 — 2021-04-16

minor bug fix on the date decoder

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## More apps by Pedro Isidoro

- [A380 Clipboard](https://appshunter.io/ios/app/a380-clipboard/id1506809340)
- [C152 M&B](https://appshunter.io/ios/app/c152-m-and-b/id1509392706)
- [C152 M&B mobile](https://appshunter.io/ios/app/c152-m-and-b-mobile/id1511681848)
- [FTL DXB](https://appshunter.io/ios/app/ftl-dxb/id1521224914)
- [C172 M&B Mobile](https://appshunter.io/ios/app/c172-m-and-b-mobile/id1523694349)

All apps by Pedro Isidoro: https://appshunter.io/developer/1506809339

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-24.*