Copiado de su FAQ:
"Manga Storm can not provide feature to export data due to agreement with Apple. However, there are some 3rd-party softwares which can do the job (iExplorer, iFile, etc.). If you acquire one of those, you can copy out "Documents" and "Library" directory of Manga Storm for backup"
Añadir que esta aplicación es una maravilla, a mi solo me plantea una duda, que diferencias existen con la versión de pago? Vale la pena?
Muchas gracias
Saludos