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 Luna Valley:
THE EARTH is getting WARMer but WINTER is getting COLDer!! Prepare THE Hand Heater for this winter, the next winter, the next next winter and so on. It's RIGHT time to get "THE Hand Heater"!! When you feel cold, use this to warm up your hands properly and keep you warm as soon as possible. FEATURES - Heat Level Controller- VOLUMN UP for sound effect!!- Designed for iPhone, iPod Touch and iPad- No Internet Uses - Less Battery Use - Sound and Visual Effect Obviously, it'll not produce enough heat like a real heater. This is meant for entertainment and fun purpose.