How could you possibly know pocketcasts never tracked anything? I am a pocketcasts user and I'd be surprised if they weren't tracking my usage of the app.

From their privacy policy, they at a minimum track what you subscribe to: What information do you collect about me? Your username in the form of an email address, and password; Your podcast subscriptions, episode data and settings configuration; Your unique device identifier, device language and licence validation data; Pocket Casts web service also uses cookies and like technologies to keep you logged in.

Should you choose to generate a support request from within the Service, we may generate an attachment containing additional data to assist in addressing your support request which you’re welcome to view prior to submission.

You do not know that they are going to start tracking you.