# GRF Snowtam vs FlightTimeApp

The clearest difference is price: FlightTimeApp at Free against GRF Snowtam's $1.99. FlightTimeApp also leads on update cadence (every 4 days vs every 4 months). GRF Snowtam's advantage is in-app purchases (none vs 3). On ads, device support and iOS requirement there is nothing between them.

FlightTimeApp is free to download; GRF Snowtam costs $1.99 up front. FlightTimeApp sells 3 in-app purchases, starting at $0.99 per month. GRF Snowtam asks for nothing beyond the download.

GRF Snowtam ships an update every 4 months, FlightTimeApp every 4 days. The most recent releases landed on November 3, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | GRF Snowtam | FlightTimeApp |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/grf-snowtam/id1514590590/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 4 days** |
| Monetization | Paid | — |
| Size | 9 MB | 242 MB |
| Requires iOS | **15.6** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Pedro Isidoro](https://appshunter.io/developer/1506809339) | [Gianluigi Grassi](https://appshunter.io/developer/1848540385) |

## What reviewers say

### 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


### FlightTimeApp

[App page](https://appshunter.io/ios/app/flighttimeapp/id6756632781)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| FlightTime Pro monthly | $0.99 | per month |
| Donate | $1.99 | one-time |
| FlightTime Pro Lifetime | $19.99 | one-time |


## Frequently asked questions

### Is GRF Snowtam free?

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

### Is FlightTimeApp free?

FlightTimeApp is free to download, with in-app purchases available.

### Do GRF Snowtam or FlightTimeApp have ads?

Neither GRF Snowtam nor FlightTimeApp shows ads.

### Which is updated more often, GRF Snowtam or FlightTimeApp?

GRF Snowtam ships an update every 4 months, and FlightTimeApp every 4 days. Most recently, GRF Snowtam was updated on November 3, 2026 and FlightTimeApp on November 5, 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.*