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App Store Apps > Weather > Avalon Offshore
Avalon Offshore icon

Avalon Offshore

by Avalon Navigation Systems · Weather · $35.00
On the App Store since June 2015 · Data updated 2026-10-14
App Store

Avalon Offshore is made and published by Avalon Navigation Systems. AppBrain is an independent app data site and isn't affiliated with Avalon Navigation Systems. The app name, icon, screenshots and description belong to Avalon Navigation Systems and are shown as published on the App Store.

AppBrain's verdict

Last updated
October 11, 2026
Size
65.6 MB

User feedback

Ratings and reviews on the App Store

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Store listing

By Avalon Navigation Systems, from the App Store
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Screenshots by Avalon Navigation Systems, from the the App Store listing
Description by Avalon Navigation Systems Written by the developer, not by AppBrain. Click to read.
Avalon Offshore is a complete weather routing and navigation application .
It works on iPads and iPhones. It also works on the new generation of Macbook Air and Pro,equipped with an ARM 64 chipset.
Avalon Offshore integrated the whole set of functions that are useful to cruisers and offshore racers; weather routing, weather, navigation with NMEA 0183 and AIS collision alarm, anchoring alert, regatta start management wit laylines, etc…
Avalon includes automatic loading of 65 weather models: NOAA GFS, Metro France Arpege,and Arome, DVD Icon, OpenWRF Skiron, etc
Avalon also includes advanced functions such as:
- Bathymetric weather routing, allowing calculation of routes taking into consideration the draft of the boat.
- Simultaneous comparaison of routes across different weather models, different routes options, etc…
- Free use of Avalon VPP to calculate customised VPP polars for single hull boats (main sail + genoa, code 0, gennaker, spinnaker, staysail and mizzen sail.
- High compression of weather data on several models (GFS, Arpege, Icon, NAM Caraïbes et USA East) enabling to reduce by up to 95% volume of data, very efficient for satellite transmission (Iridium Go, Iridium Inmarsat, etc)
- Easy weather routing module (from harbor to harbor) for a quick start of the app.
- Compatible with ©Navionics Boating maps without additional cost.
- Interfaced with ©Navily for a quick selection of the best moorings and harbors.
- On time arrival : Calculate departure time to arrive on a given time
- Compatible with ActiveLook® Augmented Reality glasses

VPP Polars
- Free use of Avalon VPP to customize your boat velocity preduction and adapt them to the exact caracteristics of your boat
- Polar captation at sea

Nautical Maps
- Free raster nautical maps: NOAA, Linz, Brasil, New Zealand
- In-app pack of maps derived from UKHO or SHOM covering France, UK Belgium, Portugal, Spain Carribean, Eastern and Western Mediterranean, Transatlantic, ...
- Personal maps support: mbtiles, tif, kap, geotiff
- Navionics maps: You can use your Navionics Boating maps with Avalon free of charge.

Weather Sources
- 65 automatic weather sources (wind, gust, current, wave and general weather) included in the Premium Option (in-app purchase)
- Capability to load external grib files (as an alternative to the Premium option)
- Capability to load external current grib from Tidetech®

Includes one month free use of Premium options (see below)
IN-APP PURCHASE: PREMIUM OPTION
Includes:
- Iridium data compression (reduce by 6 transmitted volumes)
- additional weather sources: Arome, Arpege, NAM, CEP, Skiron ....
- Weather data up to 394 hours including Wind, Gust, Waves, Precipitation, Storms, Cloud Coverage, Pressure, Temperature
- Integration of currents in route calculation in covered areas (worldwide, Iberia Biscay and Ireland and Mediterranean sea)
- Waves (Swell and wind waves)

Privacy Policy and Terms of Use at: http://www.avalon-routing.com/new/privacy/

Warning: Continued use of GPS running in the background can dramatically decrease battery life.
Policy and Terms of Use at: http://www.avalon-routing.com/new/privacy/
Official page on the App Store

Safety and technology

Found in the app by AppBrain
Price
$35.00
App size
65.6 MB
Content rating
Everyone

Technologies used by Avalon Offshore

Releases

Updates seen on the App Store
Version
8.1.1
Launched
June 2015

No changelog data

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Rankings

App Store top charts
Highest rank
#44
Chart
Top Paid
Weather
Country
France

App Store Rankings for Avalon Offshore

Top rankings

Rank Country Category List
44 France Weather Top Paid
80 Belgium Weather Top Paid

Ranking history in France

About the app and developer

About Avalon Offshore

Avalon Offshore is a weather app developed by Avalon Navigation Systems.

User Ratings

The app has no ratings yet.

App Information

Avalon Offshore costs $35.00. The app size is 65.64 MB. The latest version available is 8.1.1. The last update was on October 11, 2026.

Technical Requirements

The app has a content rating of Everyone. The app has been available on the App Store since June 2015.

Developer information for Avalon Navigation Systems

Avalon Navigation Systems

Address:

Share Avalon Offshore

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Overview Alternatives Reviews Rankings Technology
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