When I first got an iPhone it was the iPhone 3G so I guess my answer today would be Apple Music! Or any subscription music service.

Thought I’d be downloading forever lol. First tried Rdio back in like 2012 and instantly fell in love. Took a few years but eventually Spotify and Apple Music made their way into the conversation. 100% couldn’t live without it now. I never wanna have to download music again lol