# RASP

> Mobile soaring weather chart viewer with regional forecasts. (iPhone/iPad app by Jelle Vandebeeck.)

- Source: https://appshunter.io/ios/app/rasp/id426040634 (this page in markdown: same URL + `.md`)
- Developer: [Jelle Vandebeeck](https://appshunter.io/developer/390780983)
- Category: Weather, Sports
- Price: Free with in-app purchases
- Rating: 3.00/5 from 4 App Store ratings · 29 written reviews indexed
- Age rating: 4+
- Requires: iOS 8.0 · 3 MB
- Languages: American English
- Released: 2011-04-22
- Data updated: 2026-06-10
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/rasp/id426040634/reviews.md

## What is RASP?

View the soaring weather charts on your iPhone or iPad.

Can be very useful when you're on an airfield and want to check the soaring weather forecast for today.

Scroll through the different hours of the day by swiping through the charts and check the forecast for tomorrow or the day after. Ow, and don't forget to pinch when you want to take a closer look.

The following charts are available: (more coming soon)
- Charts for Benelux
- Charts for Finland
- Charts for Japan
- Charts for Australia (New South Wales)
- Charts for Australia (Queensland)
- Charts for Australia (South Australia)
- Charts for Australia (Slovakia)
- Charts for South Australia
- Charts for South-West South Africa
- Charts for Australia (Tasmania)
- Charts for Australia (Victoria)
- Charts for Australia (Western Australia)
- Charts for North/Central France
- Charts for Pyrenees
- Charts for Australia (Northern Territory)
- Charts for Germany
- Charts for UK
- Charts for Scandinavia
- Charts for USA (Bryon)
- Charts for USA (Southern California)

## Key features

- Soaring weather charts
- Hourly forecast scrolling
- Multi-day forecasts
- Pinch-to-zoom functionality
- Regional chart availability

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |


## Recent user reviews (10 of 29)

All indexed reviews: https://appshunter.io/ios/app/rasp/id426040634/reviews.md

### 1/5 — No North American RASP

*2025-07-08, version 2.9*

Title says it all. None of the North American sites work

### 1/5 — No connectiom

*2023-06-18, version 2.9*

Strange for me it gives an ERROR message for every place I tried. 
I do have connection to internet and other weather app programs are working, just not this one. In fact I’d tried 2 years ago deleted app reinstalled with the same outcome so nothing has changed my end.

### 1/5 — Defunct App

*2023-02-25, version 2.9*

DO NOT DOWNLOAD THIS APP. 
It is no longer supported and points to a server that that is defunct. I’m not being malicious, just letting you know that it doesn’t work. 
I suggest using the web version and place a bookmark on your Home Screen. A link is available on Twitter.

### 5/5 — My favorite way to check RASP

*2022-06-10*

I love the app and I used it a lot in South Africa. I’m a paraglider pilot. Now that I moved to Canada I wish I could continue using it, but no locations are available here

### 5/5 — Great app with a great developer to follow it up

*2018-10-26, version 2.9*

The app works much easier than than the standard websites. The developer is awesome and helped us out twice with little issues. Great work and thanks for the app.

### 2/5 — No longer works

*2017-07-14, version 2.8*

Sadly this really useful and excellent app no longer works for the UK.

### 5/5 — Useful and reliable!

*2017-04-05, version 2.8*

I use this app to check out the soaring forecast every time I fly. Thanks for creating it! Simple and straightforward to use.

### 5/5 — RASP and weather report app

*2016-11-21, version 2.7*

It is a great app. It reminds me of the XcSkies . Lots of little neat reports about thermal activity, weather forecast ...etc. 
definitely worth trying . Hope it add Hawaii to its directory sometime soon.

### 2/5 — Not Enough Data For The UK

*2014-05-04, version 2.5*

Decent app in principle and does combine lot of the info from the website. 

However there is a distinct lack of data for the UK compared with the other large number of countries evident. Many variables including CAPE, for example, is missing for the UK and there continues to be an error message when flicking through the soundings at certain times. 

Needs an upgrade and refurb....

### 4/5 — Can be improved

*2013-01-16*

Much improved stability and speed of app compared to 6 months ago. Loads fast and has a good interface. My only complaint is that maps are updated a day too late here in NZ. In effect this means I end up using more up to date web based rasp maps provided by the gliding community.

## Frequently asked questions about RASP

### What does this app do?

This application provides users with access to detailed soaring weather charts directly on their iPhone or iPad. It allows you to view hourly forecasts for the current day, as well as for the following two days, making it ideal for planning flights.

### What are the key features?

Key features include the ability to view soaring weather charts, scroll through hourly forecasts by swiping, check forecasts for multiple days, and use pinch-to-zoom for detailed inspection. It also offers a variety of regional charts.

### Is this app free to use?

The application is free to download and use, but it does offer in-app purchases. This means that while the core functionality is available for free, certain additional features or content may require a purchase.

### What devices is this app compatible with?

The app is designed for use on Apple devices, specifically the iPhone and iPad. It leverages the touch interface of these devices for easy navigation and interaction with the weather charts.

### How can I use this app for flight planning?

You can use this app to check the soaring weather forecast for your intended flight area. By viewing the hourly charts and multi-day forecasts, you can assess wind conditions, thermals, and other crucial weather parameters to plan a safe and enjoyable flight.

## Version history (last 5 releases)

### 2.9 — 2017-11-07

This app has been updated by Apple to display the Apple Watch app icon.

- Support iPhone X
- Update the crash reporting tools.

### 2.8 — 2017-04-05

Added the Scandinavian charts.

### 2.7 — 2016-07-18

Hi again. Sorry for the long delay, but I finally got around to fix some bugs and add some small features.

Here what I did:
- Added the Japan Chubu region charts.
- Make it possible to use split view on the iPad.
- Make iPad Pro compatible.
- Cleanup some UI glitches and finally got rid of the ugly breaking chart image. 
- Ow yeah, and revamped the placeholder screen on iPad.

Enjoy this application, and poke me if you have a question.

### 2.6.3 — 2015-09-15

First of all I fixed the crash at startup on devices with the newest-soon-to-be-released OS version.

The UI is updated to look more sharp on the bigger iPhones. (I know, should be done a long time ago. But I overlooked the issue...)

Ow yeah, I also remove some ugly shadows in the application.

### 2.6.2 — 2015-09-04

Made sure the different rasp websites still open on a soon to appear OS.

Added some extra regions for Japan.

## Apps similar to RASP

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Past Weather for Aviation](https://appshunter.io/ios/app/past-weather-for-aviation/id1538304430) | — | Free | Weather |
| [Metar-Taf](https://appshunter.io/ios/app/metar-taf/id1608949422) | 4.9 (466) | $5.99 | Weather |
| [Sorami-san](https://appshunter.io/ios/app/sorami-san/id662720462) | — | Free | Weather |
| [Swiss SAR Alerts](https://appshunter.io/ios/app/swiss-sar-alerts/id1496031677) | — | Free | Weather |
| [Cloud Point: Cloud Identifier](https://appshunter.io/ios/app/cloud-point-cloud-identifier/id6480587789) | — | Free | Weather |
| [SkySkew](https://appshunter.io/ios/app/skyskew/id6741827720) | 2.3 (3) | Free | Weather |

## More apps by Jelle Vandebeeck

- [Spoty](https://appshunter.io/ios/app/spoty/id446227723)
- [GPX Reader](https://appshunter.io/ios/app/gpx-reader/id543308129)
- [Track - Read your log files](https://appshunter.io/ios/app/track-read-your-log-files/id1197989851)
- [Soaring Book Runway](https://appshunter.io/ios/app/soaring-book-runway/id1422856598)
- [Pace Up](https://appshunter.io/ios/app/pace-up/id1467001497)

All apps by Jelle Vandebeeck: https://appshunter.io/developer/390780983

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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 2026-06-10.*