How can I get the app name where the user searches are run

[pradeepkumarg]

I want to get the app name where the users have run their searches eg: search, myapp1, myapp2

index=_audit action=search

I Couldn't get much information on the app from the above logs

[Drainy]

Something like this will give you a count of the searches a user has initiated per app (including ad-hoc dashboard ones);
index=_internal sourcetype="splunk_web_access" client_app="*" | stats count by user,client_app

If you want to pull searches out too you could write a regex to get the part you need out.