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 5 Nerds Software:
Empower yourself with Dr. Barton Goldsmiths CancerFighter, a Free mobile application created specifically to help you win your battle with cancer. These Clinical Visualization methods have been used for years by people suffering all types of illnesses, including early and late stage cancers. Men and women, from young to elderly, can now take greater control of their healing process. Bringing Clinical Visualization to the next level, this interactive program is designed as a powerful aid in destroying unhealthy cells, helping you live longer and stronger.This application does not heal cancer. It is provided as an adjunct method to help you relax and visualize optimal health. It is not intended to replace traditional medicine; also please check with your health care provider before using this application.