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 Roberto Pagni:
If you're not looking for a virtual Personal Trainer, but you need a simple and straightforward application to be your companion during your workout, then Workout Mate is for you!Add your workouts and associate exercises to them, indicating details you need. You can even link a playlist to your entries, so that Workout Mate can play it for you in the background while you're training!It will help you keeping the rhythm of your exercises and tell you when it's time to rest and how much you should rest, alerting you when it's time to get back to work!Workout Mate is simple, immediate and it does not ask you for complex details or extra info. Just tell it what you want to do and it's done!