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 Cardiff University:
The interactive map in this App is designed to help you to understand the options and alternatives within a medical career pathway. 1. Look at the map and click the boxes. For example, click the F2 box to see the potential routes available to you after F2 year. 2. Click the red "i" button on each step. It will give a brief narrative about the type of post this is. Make sure you investigate every box so that you understand all the possibilities, even those you may not have considered - these may be useful contingency plans. 3. Identify three possible routes which you would consider pursuing after F2, or whenever you are ready to apply to specialty training. Which would be your Plan A, B and C? 4. Go and ask questions or carry out further research into the boxes you knew least about. You need to be aware of all your imployment options at the next step of your career.