To use Casting Tools you’ll have two different storages, that are independent from one another.

The first is the Project storage, this is the one needed for your active projects. When you have an active project, it will take space from this storage. When you deactivate a project, you will free space in the storage because only active projects occupy space in your Project storage.

The space taken by an active project is made up of all of the information and media coming from all the profiles inside that project. You can see the stats from the project in its thumbnail and in the Active projects list on your Account dashboard.

The second one is your People gallery storage, this space taken in this storage is the sum of all the profiles and their media in your gallery or personal database. If you delete a profile or media from the People gallery, you will free space from this storage.

Learn more about deleting profiles and deleting media.