You will be able to transfer your Cookbook app subscription since it was purchased using your Apple ID account. The first step is to check that you are logged into the same Apple ID account that purchased the subscription. Then, open the June app and sync your phone to the new oven. If you are not, please go to "Devices" section on the oven and click on "Connect to Device" and connect your device before proceeding to the next step. Then, on your June App, go to the Cookbook tab and select "Go Premium" from one of the premium recipes or the catalog list. On this page, instead of pressing 'Start free trial', please tap 'Restore Purchase From the App Store'. After the restore completes you are all set to use the Cookbook app with your new June Oven.