To upgrade the GoodWhale subscription that we’ve purchased through Apple In-App Purchase, we can proceed to “Subscription” and then select “Manage Subscription in iOS”. The “Manage Subscription” option in the iOS settings is where we can modify our subscription details, including upgrading to a different plan. Please note that the exact navigation may vary slightly depending on the version of iOS we are using. It’s also important to be aware that any changes we make to our subscription will be handled by Apple’s payment system, as it’s tied to our Apple ID.