Looking for an app to help archive unused channels. I'm the admin for an Enterprise Grid environment with 15 workspaces and 2500+ daily active users.

We have a LOT of channels.  I am trying to find an app to pull usage and if a channel hasn't been used in X days, let me know so I can decide if it should be archived or not. I know this can be done through the API, but if there was an app that could perform the check once a day it would save me a ton of hassle. Any ideas?