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 Storm Mobile:
*This app is unofficial, please read Disclaimer at bottom of description* The best "Mass Effect 3" Guide is here!Features:* Walkthrough information* Walkthrough Video (need internet)* Side Missions information and Video (need internet)* Weapons and equipment database* All Classes information* Page and Page Cheat & Tips* Multiplayer information* Universe* Achievements / Trophies Mark system* Galaxy map informationAnd much more...Legal Disclaimer:This is not an official guide or affiliated to the game's developer(s) or publisher(s). All the descriptions, characters, locations, imagery and videos of game content used in this app are copyright to their respective owners and usage for this game guide/material falls within US Copyright law guidelines of "Fair Use" and equivalent in other jurisdictions. This guide is intended purely for the educational purpose.