The App Store has an update mechanism but lacks an upgrade mechanism.  Let’s first clarify the difference between update and upgrade.  An update is a newer version of the same app.  An upgrade is the installation of another app, usually more sophisticated, that replaces an existing app.

The good news is that bundles solve the lack of upgrade mechanism.  Below are explained the 4 possible ways to upgrade to Weather4D Routing & Navigation using bundles.

Upgrade from Weather4D

Step 1: Update to Weather4D Lite

https://itunes.apple.com/us/app/weather4d-lite/id418723845

Step 2: Upgrade to Weather4D Routing & Navigation

https://itunes.apple.com/us/app-bundle/weather4d-lite-upgrade-to-weather4d-routing-navigation/id1352282857

Note: Upgrade happens by purchasing a bundle containing Weather4D Lite and Weather4D Routing & Navigation.  As Weather4D was purchased before, the App Store will charge only the difference between the bundle price and the price paid for Weather4D.

 

Upgrade from Weather4D Lite

upgrade w4d lite w4d rn

https://itunes.apple.com/us/app-bundle/weather4d-lite-upgrade-to-weather4d-routing-navigation/id1352282857

Note: Upgrade happens by purchasing a bundle containing Weather4D Lite and Weather4D Routing & Navigation.  As Weather4D Lite was purchased before, the App Store will charge only the difference between the bundle price and the price paid for Weather4D Lite.

Upgrade from Weather4D Pro

Step 1: Update to Weather4D Routing

https://itunes.apple.com/us/app/weather4d-routing/id480096611

Step 2: Upgrade to Weather4D Routing & Navigation

https://itunes.apple.com/us/app-bundle/weather4d-routing-upgrade-to-weather-4d-routing-navigation/id1352284646

Note: Upgrade happens by purchasing a bundle containing Weather4D Routing and Weather4D Routing & Navigation.  As Weather4D Pro was purchased before, the App Store will charge only the difference between the bundle price and the price paid for Weather4D Pro.

Upgrade from Weather4D Routing

https://itunes.apple.com/us/app-bundle/weather4d-routing-upgrade-to-weather-4d-routing-navigation/id1352284646

Note: Upgrade happens by purchasing a bundle containing Weather4D Routing and Weather4D Routing & Navigation.  As Weather4D Routing was purchased before, the App Store will charge only the difference between the bundle price and the price paid for Weather4D Routing.

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