They may not have the license agreement to create such an App, as it would then put them directly in competition with the company that makes D&D Beyond.
maybe, but I doubt it. I am not privy to the actual terms signed by roll20 or wikia inc /Fandom.com (owner operators of DnD beyond further refererred to "the other guys") but what I skimmed from the OGL document provided on WOTC site, https://www.wizards.com/default.asp?x=d20/oglfaq/20040123f it does not seem so. Further unless WOTC has some skin in the game with "the other guys" they would not care who sold what in regard to online content. They may begin to worry about profits from their hard copy sales, but that is also not a huge initial concern and one shared with many companies, Pay affiliate fees for driven traffic (less margin) or build up our own organ traffic (more margin - harder uphill battle).
But that is taking us off topic, which is: it just makes business sense to provide the tool.
Sorry, in addition, Roll20 are currently providing the compendium in-browser format; so I cannot see the delivery medium being a factor for the license agreement. The in-browser experience is ok , but not quite the same as an app formatted to fit on mobile.
The mobile apps for android and iOS provide access to the compendium. I know the mobile apps don't work for everyone, but that's how I bring all my game books with me to the table when I go to conventions.
The mobile app is tablet only :( cannot access with phones - at least the iOS version, I cannot speak to the android.
Again, from a business point of view- it makes sense to produce a multi-platform app that provides the search and find features users will deem worth buying the add on compendiums from roll20. Value (cost and quality) needs to be there - and they will (buyers) come.
Thanks for the suggestion!
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