FH3 FAQ: Message Center and Forza Hub
Forza Hub
FM.net: Forza Hub update announcement - March/June 2015
FM.net: Forza Hub for Windows announcement - December 2015
Windows Store: download
The Forza Hub is a free app on the Xbox One console and Windows 10. You can use it to review your Achievement progress, compare progress against Friends, review Forza Rewards points progress, redeem Forza Rewards, read the latest News and announcements from Turn 10, view game photos from your Friends and your own gallery, jump to DLC in the Xbox Store, and launch the the game.
Anywhere you see the “. . .” symbol you can select it to view more pages for that topic.