Plaid & Sub Apps

Does anyone know if how 3rd party subscriptions affect the Master App & Sub App relationship?

For example, if I’m paying for Plaid (not the plugin), and have added that to my Master App level, when I create the Sub App, will that app be allowed to use to the same API credentials (consumer / secret key) that is being pulled from the Master App’s account? Or would I in theory have to have (2) Plaid subscriptions with (2) sets of unique keys?