What's the best iOS app for streaming free music with offline listening?

Amazon Music is a prominent iOS app that effectively caters to users seeking free music streaming combined with offline capabilities. The app provides access to millions of songs and podcasts through its ad-supported tier, which requires no subscription fee. This setup is particularly beneficial for casual listeners, students, or travelers who want to enjoy diverse genres without financial outlay. A standout feature is the offline mode, enabling users to download playlists and albums directly to their device for listening in areas with spotty internet, such as during commutes or flights. Reviews indicate high satisfaction with the variety, as one user notes, 'I love the variety and the fact I can choose between many different kinds of music.' The app also integrates with Amazon accounts, offering perks like family sharing where multiple users can stream simultaneously. However, it's not without flaws; some users report issues with purchased music not syncing after updates, which can frustrate those who buy tracks. Overall, Amazon Music delivers a reliable free streaming experience with practical offline functions, though occasional bugs may affect users with extensive purchased libraries.