I need to create Live Chat Business, I need suggestion which framework need to use

Dear developers, I have to create a Livechat business, something like (Livechatinc, [login to view URL], Olark etc.) At this stage I do not need to create any apps, I just need to plan what kind of framework I'll have to use. Since there are currently several frameworks like (React.js, Meteor, Angular.js, Django etc) I need suggestions. Livechat business includes: - website development where customer profiles/billing are managed. - mobile/desktop app development (client) Android, iOS, Macos, Windows. - backend development for livechat settings. I need to know what the best technologies to develop this kind of project. Mobile application = Ionic? Framework = Meteor? I need a document where explain which frameworks should use and the reason. If you can provide this document and apply this job please contact me in chat for more info. Thanks.