Swivel Locks Android's Screen Orientation for Individual Apps

Don't you hate it whenever you are on Youtube or on certain apps and you wish that your phone would automatically know to be in landscape mode or in portrait?  Well, if you have and Android device, Swivel has now made your life much easier.  Swivel is the new app that lets you permanently choose the orientation type that you want for any app on your Android phone.  Youtube is probably the best example.  Almost always, Youtube is much better in landscape mode.  Now, as you know, by default your Android phone usually only lets you do auto-rotate or it doesn't allow it at all.  Now you can use Swivel to customize your phone's orientation.  It even goes beyond portrait and landscape by allowing you to specify the direction that your portrait/landscape screen faces. You can even go into your phone settings and turn off the auto-rotate, and still be able to set certain apps to auto-rotate and override your settings to accommodate your needs! Quite a cool invention and is only $0.99 on Google Play Store. Now all they need to do is come out with something just like this for the iPhone.  I for sure would greatly appreciate if they did that or if they were able to make it compatible for iPhones.