Roku Support
posted this on September 20, 2012 16:30
The Roku iOS app can be used on iPhone 3G, iPhone 3GS, iPhone 4, iPhone 4S, iPhone 5 and iPod Touch 2nd generation or higher. You must have iOS version 4.3 or higher installed.
You also can use the Roku app on any generation of iPad. However, at this time, we do not offer an iPad-optimized version of the Roku iOS app.