Normally the game runs $0.99 for the iPhone and $2.99 for the iPad. The game does offer in-app purchases, and those prices have not been waived, so you will want to remember that when pondering whether or not to acquire extra bundles of tools. Some in-app purchases for Angry Birds Rio run as much as $20.
Angry Birds Rio brought the first new twist to the Angry Birds genre and Rovio has since updated the app with power-ups (in-app purchases) which give you extra anti-monkey tools to work with while hurling the birds off the sling-shot. So, if you have been looking to dig into a new game, but also looking for a bargain, check out Angry Birds Rio on iTunes.