Download is when you are charged to have the music/videos in your mobile device or web, and stored either in the phone’s memory card or mobile device/web. These can be transferred to other devices.
Streaming is when you listen to music/videos on CeFlix Tunes using your Internet connection.
Offline Play is almost like Download but it’s only possible when you have an active subscription plan. Music/Videos synced for offline play cannot be transferred to other devices and can only be listened while your subscription plan is valid.