An iPhone app that incorporates GPS, Music Apps, a built in timer, and an interface with Social Media

Hello Future Freelancer, I am looking to build an iPhone app that will incorporate frequently updated GPS mapping/tracking information, music apps (Spotfiy, Soundhound, iTunes) that will have a built in BPM counter, a timer that individuals can manually input into the app, and an interface that will allow the user to update information, track playlists, and personal bests and share that information across all major social media outlets. These interfaces will make more sense when you are hired to build the app and I will describe the app in terms of its functionality at a later date. Happy bidding and I look forward to working with you very soon. Best, Nordicsafari