Thanks folks. I went to the Amazon app on the KF first and purchased, downloaded and installed it. Then I just went to the appstore that was also installed on the other devices I owned and downloaded and installed on each of those as well. I guess I wouldn't have been too upset if I had to repurchase for the cheap price but once you own it on your amazon account then I should have known it is yours throughout devices when the appstore is installed.
Is there no end to this madness?
Gotta find what other .10 apps I want!