Here's how you can download the Clash of Clans app free for your iPad, iPhone, iPad mini or iPod Touch.
1. Go to the Clash of Clans app preview page in iTunes (or tap the link on your iOS device to install the app directly).
2. Click the View in iTunes button.
3. Click the Free button to download the app.
4. Sync your iPad, iPhone, iPod Touch or iPad mini with iTunes to install the app.
Here's a description and screenshot:
"Clash of Clans is an addictive mixture of strategic planning and competitive fast-paced combats. Raise an army of Barbarians, War Wizards, Dragons and other mighty fighters. Join a clan of players and rise through the ranks, or create your own Clan to contest ownership of the Realm. Driving back the goblins is just the first step - your quest isn't over until your clan reigns supreme over all others!"