When your trial expires, the Trial/Upgrade screen will display the Unity AAC™ upgrade option. To purchase an upgrade, select the Upgrade button. Or you can choose to upgrade any time before the trial period ends by going to the Trial/Upgrade screen from the settings.
Select Vocab and then Choose New Vocab in the upper left corner of the vocabulary page.
Select Menu in the upper right corner. The menu that opens will include Upgrade Store.
Select Upgrade Store. The Trial/Upgrade screen will reopen and allow you to purchase the upgrade.
After selecting Upgrade, enter your Apple account purchase information and select the Purchase button. A message will indicate that your purchase was successful.
Select OK to close the message.
Another message will confirm that your upgraded app has been installed and is ready to use. Select Okay to close the message.
Select OK. The Unity AAC app is ready for you to use. View the tutorial or select Later.