Does it leverage an API call to directly to the data sources, or does it use data indexed in Splunk already?
@jkaldor I haven't seen any apps that depend on Splunk data in SOAR as it's an independent tool and most apps use API-based connections.
If you want to check, download the app either locally or in the platform and view the py files.
-- Hope this helped. If so please mark as a solution for others to see. Happy SOARing! --