TrackID
I'm working on a tool to automatically sync your work-in-progress music from your DAW (digital audio workstation, like Ableton Live, etc), to your phone. Basically a workflow tool for musicians and producers! Also has some quick share/feedback functionality too. Would love some feedback since it's still in really early stages. Already integrates with Ableton, Bitwig, Cubase, and GarageBand. https://trackid.com. I used to work at Native Instruments, and super happy to now work on something for myself instead.