CEO of URX here- thanks for your excitement Steve! We're definitely big fans of the app you built! Currently we list out the availability of apps in our index

CEO of URX here- thanks for your excitement Steve! We're definitely big fans of the app you built! Currently we list out the availability of apps in our index by company and not by operating system; we’ll look into providing more detailed information. Regarding IMDb: while the site index may be accessible and their app does have deep links, IMDb has not publicly exposed their deep link structure via meta tags. Currently, we're only indexing sites with these tags, but that will change shortly.