In the izneo application for Android:
To delete albums that you have downloaded to your device and thereby free up memory, head to “My space.”
Then go to “My account” via the icon located in the top right-hand corner of your screen.
Select “Memory management” in the “My options” area.
You will then see all of the albums you have downloaded. Just tap on the orange square at the top left of each cover.
Once you have selected the albums you wish to delete, tap on the “Garbage” icon to delete the selected albums.
In the izneo application for iOS:
To delete albums that you have downloaded to your device and thereby free up memory, tap on the icon located in the top left-hand corner of the screen (a person and three horizontal lines), then select “Memory management.”
You will then see all of the albums that have been downloaded by the izneo account users. You can delete them one by one by tapping the “x” at the top left of each album cover.