Sync.

Music sharing on mobile sucks. You send a friend a track on WhatsApp, tell them how awesome it is, and wait for them to listen to it. Sometimes they don't, sometimes you wish you both could hum on the tunes of the same song together. Don't worry..

With Sync, you can share music and listen to it together: while chatting about it real-time! Think of it like sharing the earphones, but you don't have to be next to each other.