Roku In-channel Purchasing integration

1. Deep Linking in ROku App 2. Dynamic Signup page based on user counry of orign. Webservice is created using which you can identify users country of origin if you have any architeture in mind we can prefer that as well. 3. Implementing 2 days Free Trail after which allow user to select package for Monthly subscription 4. Payment system need to work seemlessly with other payment system as we are using [login to view URL] for our website and Android. User purchasing the Package should be allowd to login into other platform and vice versa. Only developer apply for this job who have integrated payment system in Roku including Webservices API of Roku. Kindly go through the requirement.