Very good app!
Easy to use, with only two feature requests: a) if you could add the metric system to the app I'm sure it would appeal to a lot more of us europeans :P b) Adding an export to dxf option would really be the icing on the cake that is this already best box designer out there, beating all other tabbed box designers out there. With dxf support,I'd be the best app to generate laser cutting files in the world.