Tegra Zone is an app that runs on Android mobile devices and helps users easily discover all of the Tegra-optimized games available on the Android Market. It also provides additional features such as professional game reviews, HD videos, and behind-the-scenes footage for the top Android games.
The Android Market is a storefront for purchasing apps for Android mobile devices.
When you decide on a game to purchase within the Tegra Zone app, clicking on "Get It Now" takes you to the Android Market product page for that game where you finalize the purchase and download the game. The complete sales transaction, game download, and game support happen within the Android Market through Google and the game developer.
Tegra Zone is not intended to replace the purchase, download, or functionality of the Android Market, but rather to compliment it by providing a selection of premium games that developers believe will offer an exceptional experience for users of Tegra-powered phones and tablets.