Hi
I have seen the sketch and your App seems to be complex as 2 points like live stream and live score it is the complex task and other can be done easily in 20 working days.
We are the IT company having 5+ years of experience in App and Web development, App and Web designing, backend, SEO/SMM cloud services, and enterprise solutions.
We have knowledge of Xcode IDE(Objective-C), Swift, Eclipse IDE, Android SDK, ADT Plugin, Java Programming, JSON, XML, Utility APIs, MySQL and SQL server database, super level UI design and much more.