Hello I have already built many apps that familiar with yours. I am new at Freelancer Android, but I have been working since last 6 years, So please do not worry about service you will get perfect and professional solution from me. I have experience with Social app(all backend integration, payment integration, school & hospital etc social place management app, tournament-guider app),IPTV app, XBMC, Video/Radio app, Spy app, Guard patrol system based on Nfc Read/Write , Driver & Taxi app on GPS, Routing app based on GoogleMp,Youtubevideo, JNI(FFMPEG,OPENVPN) , Responsible mobile site Bank Management system, Driver Routing app, Image processing apps, OpenCV, CImg, and so on. I can give you the perfect app that you want. Best Regards, jarrie sussane