I am the owner of an iPhone 4 upgraded to iOS 7. I have become tired of apps force closing and slow responsiveness. I looked online and have found that it is possible to downgrade with ifaith but faith is only for windows I have a mac. I have tried stitching and restoring with redsn0w, I also do have iTunes 11.05 not 11.1. Does anyone know how to downgrade on a mac?