If you downloaded DisplayFusion 12.0 and are having issues with languages please re-download and re-install. We have repacked the release as 12.0c with the languages fixed.
I am interested in buying this app but the demo does not provide access to the features in which I am interested. I am willing to buy a single license to see if the app will do what I need, but I would like to know if I can upgrade to the personal home license if I find the need? To clarify, I mean pay the difference in licensing fees.