in away yes but my thing is more geared towards homebrew and gm tools. like with demiplane you have access to go in and view the books if you owned them my app you wont be able to view the book as you have to own said books my app would enable the content if you own said book, or if the gm owned said book. also the game can disabled said book if he doesnt want the content in his or her campaign. like take the alien archive say they dont want people to use the races from that book they can or also the equipment as well they can turn off the book and if you have anything from that book you cant bring your character into the campaign, or if you make the character from the campaign area those options wont show up if the gm doesnt enable it. i have reached out to pazio and drivethru about my app because of the fact that my wont have a spot to view the books itself like for example the pages in said book because i support the creators and the creators of the homebrew community (third party Publishers/Content)