The "Download Now" link directs you to the iTunes App Store, where you must continue the download process. You must have iTunes installed in order to open the link, and you must have an active iTunes account to download the application. This download may not be available in some countries.
From MORE Marketing Organisation und Radioentwicklungs GmbH & Co. KG:
The Radio Hamburg App 2.0 - now with a lot of new features! Became for example our listener-reporter, find all the radio Hamburg CLUB partner in your area or get your personal 4-day weather! Download immediately for free. Radio Hamburg started to broadcast on 31 December 1986 as the first private station of the Hanseatic city. Since 1993, Radio Hamburg is the number one in the radio market of Hamburg and the most listened radio station in the city. More than 1 million people are listen to the 24-hour full program with the mega-hits of the 90s, 2000s, and the best of today.