This article explains how to listen to Pandora stations offline using the Pandora app on any version of Android, iOS, or iPadOS.
How to Listen to Pandora Offline | Using Pandora Offline
Pandora Plus lets you listen to up to four stations offline. Pandora Premium supports unlimited offline playlists. If your account is enabled for offline listening, the process is simple. To enable offline mode in the Pandora mobile app, follow these steps:
Tap the settings icon (the gear).
Tap the Offline Mode slider to enable offline mode.