Yes! You can find our iOS app in the iTunes App Store on your iPhone. Please note that our iOS app is meant to be complimentary to our web app, so while you can start baloonrs and participate in baloonrs on iOS, you are unable to add new users or create groups.
For those without an iPhone, you can use our web application, which is fully-responsive.
Android fans, we love you, and your native app is on our roadmap.