If I were to put out an app that gave you access to research journals, should I not list the journals that I give you access to? I, honestly, don't see this as spammy. But I must confess that I don't really know much about Vibe Vault so maybe there is something I'm missing. Or maybe there is a separate "contents" page in the app store listing where that would be appropriate.

To me, "spammy" would be listing unrelated or marginally related things, to show up in edge-case searches. Perhaps "DJ, party, entertainment" etc. would be spammy. Listing your contents? I respectfully disagree.