Export geometry with material names from Owlet to import into Koru
It would help if you can share geometry and materials' names, even if it doesn't include the materials themselves?
Done in Owlet 1.4: http://boxshot.com/2017/07/11/owlet-1-4.html
Allart van Holten commented
In fact, all of your apps should support a common object model that can be shared amongst them. At the very least a way to export objects as .dae. This is now a major issue, as we need to do all the work in Koru and then Owlet again.
If Boxshot were able to edit the individual parts of an imported .dae in the same way Koru and Owlet can, that might help a lot as well.