Its one big sales pitch
Most of the entries in this free version have this addendum: "NOTE: This condition has been revised with newer information only available in the premium version of this app. To learn more and to upgrade, tap the "Cures A-Z+" button in the main toolbar below." There are also links to product websites and references to the authors book, where, we are told, more information is to be found. And I just wasnt impressed with the limited information presented here.
Aztai about
Cures A-Z, v4.0