I should have mentioned earlier that Vio 2.0 has been completely redesigned for iOS 7 and is now free!
This incredible update includes a new interface that’s more beautiful and intuitive. We’ve added four new background color palettes. Additionally, Vio is now fully optimized for iOS 7 and is free to download and explore. Once you discover how amazing Vio is, you can purchase a bundle of 19 audio presets and 16 more color palettes in Vio’s new in-app store.